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2222220000440 = 235116551770951
BaseRepresentation
bin100000010101100110101…
…000100011110010111000
321212102221022222111210202
4200111212220203302320
5242402101310003230
64420512422501332
7316356453225326
oct40254650436270
97772838874722
102222220000440
11787490291210
122ba820b94848
131317291731ab
14797ada1cd16
153cc1203aa45
hex20566a23cb8

2222220000440 has 64 divisors (see below), whose sum is σ = 5455379704320. Its totient is φ = 807955600000.

The previous prime is 2222220000397. The next prime is 2222220000443. The reversal of 2222220000440 is 440000222222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222220000443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2496965 + ... + 3267915.

It is an arithmetic number, because the mean of its divisors is an integer number (85240307880).

Almost surely, 22222220000440 is an apocalyptic number.

2222220000440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222220000440 is an abundant number, since it is smaller than the sum of its proper divisors (3233159703880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222220000440 is a wasteful number, since it uses less digits than its factorization.

2222220000440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777524 (or 777520 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 2222220000440 its reverse (440000222222), we get a palindrome (2662220222662).

The spelling of 2222220000440 in words is "two trillion, two hundred twenty-two billion, two hundred twenty million, four hundred forty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 6551 13102 26204 32755 52408 65510 72061 131020 144122 262040 288244 360305 576488 720610 770951 1441220 1541902 2882440 3083804 3854755 6167608 7709510 8480461 15419020 16960922 30838040 33921844 42402305 67843688 84804610 169609220 339218440 5050500001 10101000002 20202000004 25252500005 40404000008 50505000010 55555500011 101010000020 111111000022 202020000040 222222000044 277777500055 444444000088 555555000110 1111110000220 2222220000440