101221002112 has 16 divisors (see below), whose sum is σ = 201651215400. Its totient is φ = 50610500992.

The previous prime is 101221002073. The next prime is 101221002139. The reversal of 101221002112 is 211200122101.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 101221002092 and 101221002101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395394412 + ... + 395394667.

Almost surely, 2^101221002112 is an apocalyptic number.

It is an amenable number.

101221002112 is a deficient number, since it is larger than the sum of its proper divisors (100430213288).

101221002112 is an frugal number, since it uses more digits than its factorization.

101221002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790789093 (or 790789081 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101221002112 its reverse (211200122101), we get a palindrome (312421124213).

The spelling of 101221002112 in words is "one hundred one billion, two hundred twenty-one million, two thousand, one hundred twelve".