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120211012220 = 225131924334213
BaseRepresentation
bin110111111110100100…
…0100111101001111100
3102111021201020010211212
41233331020213221330
53432143004342340
6131120231103552
711453640513245
oct1577510475174
9374251203755
10120211012220
1146a87a89792
121b36a511bb8
13b449b28b80
145b65393ccc
1531d8787a65
hex1bfd227a7c

120211012220 has 48 divisors (see below), whose sum is σ = 286170356640. Its totient is φ = 42049518336.

The previous prime is 120211012219. The next prime is 120211012223. The reversal of 120211012220 is 22210112021.

It is a junction number, because it is equal to n+sod(n) for n = 120211012195 and 120211012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211012223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12162167 + ... + 12172046.

It is an arithmetic number, because the mean of its divisors is an integer number (5961882430).

Almost surely, 2120211012220 is an apocalyptic number.

120211012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120211012220 is an abundant number, since it is smaller than the sum of its proper divisors (165959344420).

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

120211012220 is a wasteful number, since it uses less digits than its factorization.

120211012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24334254 (or 24334252 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120211012220 its reverse (22210112021), we get a palindrome (142421124241).

The spelling of 120211012220 in words is "one hundred twenty billion, two hundred eleven million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 190 247 260 380 494 988 1235 2470 4940 24334213 48668426 97336852 121671065 243342130 316344769 462350047 486684260 632689538 924700094 1265379076 1581723845 1849400188 2311750235 3163447690 4623500470 6010550611 6326895380 9247000940 12021101222 24042202444 30052753055 60105506110 120211012220