101221099976 has 16 divisors (see below), whose sum is σ = 193006335600. Its totient is φ = 49752743824.

The previous prime is 101221099961. The next prime is 101221099999. The reversal of 101221099976 is 679990122101.

It is a super-2 number, since 2×101221099976² (a number of 23 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 101221099976.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107225270 + ... + 107226213.

It is an arithmetic number, because the mean of its divisors is an integer number (12062895975).

Almost surely, 2^101221099976 is an apocalyptic number.

It is an amenable number.

101221099976 is a deficient number, since it is larger than the sum of its proper divisors (91785235624).

101221099976 is a wasteful number, since it uses less digits than its factorization.

101221099976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214451548 (or 214451544 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 47.

The spelling of 101221099976 in words is "one hundred one billion, two hundred twenty-one million, ninety-nine thousand, nine hundred seventy-six".