100021616202472 has 8 divisors (see below), whose sum is σ = 187540530379650. Its totient is φ = 50010808101232.

The previous prime is 100021616202461. The next prime is 100021616202479. The reversal of 100021616202472 is 274202616120001.

It can be written as a sum of positive squares in only one way, i.e., 51714306682756 + 48307309519716 = 7191266^2 + 6950346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (100021616202479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251351012647 + ... + 6251351012662.

Almost surely, 2^{100021616202472} is an apocalyptic number.

It is an amenable number.

100021616202472 is a deficient number, since it is larger than the sum of its proper divisors (87518914177178).

100021616202472 is a wasteful number, since it uses less digits than its factorization.

100021616202472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12502702025315 (or 12502702025311 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 100021616202472 in words is "one hundred trillion, twenty-one billion, six hundred sixteen million, two hundred two thousand, four hundred seventy-two".