51101155223202 has 64 divisors (see below), whose sum is σ = 117011119104000. Its totient is φ = 14574286238400.

The previous prime is 51101155223201. The next prime is 51101155223291. The reversal of 51101155223202 is 20232255110115.

It is a super-2 number, since 2×51101155223202² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51101155223202.

It is not an unprimeable number, because it can be changed into a prime (51101155223201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76703424 + ... + 77366772.

It is an arithmetic number, because the mean of its divisors is an integer number (1828298736000).

Almost surely, 2^{51101155223202} is an apocalyptic number.

51101155223202 is an abundant number, since it is smaller than the sum of its proper divisors (65909963880798).

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

51101155223202 is a wasteful number, since it uses less digits than its factorization.

51101155223202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666631.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 51101155223202 in words is "fifty-one trillion, one hundred one billion, one hundred fifty-five million, two hundred twenty-three thousand, two hundred two".