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2210223231020 = 225740938599777
BaseRepresentation
bin100000001010011011100…
…100100001000000101100
321211021222020221110222102
4200022123210201000230
5242203014121343040
64411210150234232
7315453251325230
oct40123344410054
97737866843872
102210223231020
11782394436842
122b8433355978
1313056689cc6c
1478d926025c0
153c75dc07515
hex2029b92102c

2210223231020 has 48 divisors (see below), whose sum is σ = 5317505417280. Its totient is φ = 755938013184.

The previous prime is 2210223230933. The next prime is 2210223231067. The reversal of 2210223231020 is 201323220122.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2210223230983 and 2210223231001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19242629 + ... + 19357148.

It is an arithmetic number, because the mean of its divisors is an integer number (110781362860).

Almost surely, 22210223231020 is an apocalyptic number.

2210223231020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210223231020 is an abundant number, since it is smaller than the sum of its proper divisors (3107282186260).

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

2210223231020 is a wasteful number, since it uses less digits than its factorization.

2210223231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38600202 (or 38600200 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2210223231020 its reverse (201323220122), we get a palindrome (2411546451142).

The spelling of 2210223231020 in words is "two trillion, two hundred ten billion, two hundred twenty-three million, two hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 409 818 1636 2045 2863 4090 5726 8180 11452 14315 28630 57260 38599777 77199554 154399108 192998885 270198439 385997770 540396878 771995540 1080793756 1350992195 2701984390 5403968780 15787308793 31574617586 63149235172 78936543965 110511161551 157873087930 221022323102 315746175860 442044646204 552555807755 1105111615510 2210223231020