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1010224231220 = 2251911092397191
BaseRepresentation
bin11101011001101100000…
…11100111001100110100
310120120120021010012000102
432230312003213030310
5113022414400344340
62052031323133232
7132662204166221
oct16546603471464
93516507105012
101010224231220
1135a485273166
12143956074218
13743575755b9
1436c76298948
151b429168215
hexeb360e7334

1010224231220 has 48 divisors (see below), whose sum is σ = 2235141820800. Its totient is φ = 382476458880.

The previous prime is 1010224231127. The next prime is 1010224231259. The reversal of 1010224231220 is 221324220101.

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 = 1010224231192 and 1010224231201.

It is a congruent number.

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, 777176 + ... + 1620015.

It is an arithmetic number, because the mean of its divisors is an integer number (46565454600).

Almost surely, 21010224231220 is an apocalyptic number.

1010224231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010224231220 is an abundant number, since it is smaller than the sum of its proper divisors (1224917589580).

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

1010224231220 is a wasteful number, since it uses less digits than its factorization.

1010224231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398328 (or 2398326 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1010224231220 its reverse (221324220101), we get a palindrome (1231548451321).

The spelling of 1010224231220 in words is "one trillion, ten billion, two hundred twenty-four million, two hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 1109 2218 4436 5545 11090 21071 22180 42142 84284 105355 210710 421420 2397191 4794382 9588764 11985955 23971910 45546629 47943820 91093258 182186516 227733145 455466290 910932580 2658484819 5316969638 10633939276 13292424095 26584848190 50511211561 53169696380 101022423122 202044846244 252556057805 505112115610 1010224231220