101221020112 has 20 divisors (see below), whose sum is σ = 196121800576. Its totient is φ = 50608942560.

The previous prime is 101221020053. The next prime is 101221020113. The reversal of 101221020112 is 211020122101.

101221020112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 101221020092 and 101221020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221020113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574753 + ... + 729919.

Almost surely, 2^101221020112 is an apocalyptic number.

It is an amenable number.

101221020112 is a deficient number, since it is larger than the sum of its proper divisors (94900780464).

101221020112 is a wasteful number, since it uses less digits than its factorization.

101221020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195946 (or 195940 counting only the distinct ones).

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

Adding to 101221020112 its reverse (211020122101), we get a palindrome (312241142213).

The spelling of 101221020112 in words is "one hundred one billion, two hundred twenty-one million, twenty thousand, one hundred twelve".