101020221220972 has 6 divisors (see below), whose sum is σ = 176785387136708. Its totient is φ = 50510110610484.

The previous prime is 101020221220969. The next prime is 101020221220973. The reversal of 101020221220972 is 279022122020101.

It is not an unprimeable number, because it can be changed into a prime (101020221220973) 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 as a sum of consecutive naturals, namely, 12627527652618 + ... + 12627527652625.

Almost surely, 2^{101020221220972} is an apocalyptic number.

It is an amenable number.

101020221220972 is a deficient number, since it is larger than the sum of its proper divisors (75765165915736).

101020221220972 is a wasteful number, since it uses less digits than its factorization.

101020221220972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25255055305247 (or 25255055305245 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 101020221220972 in words is "one hundred one trillion, twenty billion, two hundred twenty-one million, two hundred twenty thousand, nine hundred seventy-two".