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202111011012 = 22379213197269
BaseRepresentation
bin1011110000111011000…
…0010100100011000100
3201022200110112011012110
42330032300110203010
511302410404323022
6232503140221020
720413333151031
oct2741660244304
9638613464173
10202111011012
117879543aaa9
123320669a770
131609c793b11
149ad45d6388
1553cd96400c
hex2f0ec148c4

202111011012 has 24 divisors (see below), whose sum is σ = 477561884800. Its totient is φ = 66517547616.

The previous prime is 202111011007. The next prime is 202111011029. The reversal of 202111011012 is 210110111202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106597687 + ... + 106599582.

Almost surely, 2202111011012 is an apocalyptic number.

It is an amenable number.

202111011012 is an abundant number, since it is smaller than the sum of its proper divisors (275450873788).

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

202111011012 is a wasteful number, since it uses less digits than its factorization.

202111011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213197355 (or 213197353 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 202111011012 its reverse (210110111202), we get a palindrome (412221122214).

The spelling of 202111011012 in words is "two hundred two billion, one hundred eleven million, eleven thousand, twelve".

Divisors: 1 2 3 4 6 12 79 158 237 316 474 948 213197269 426394538 639591807 852789076 1279183614 2558367228 16842584251 33685168502 50527752753 67370337004 101055505506 202111011012