101221102112 has 24 divisors (see below), whose sum is σ = 214608202956. Its totient is φ = 46717431552.

The previous prime is 101221102079. The next prime is 101221102127. The reversal of 101221102112 is 211201122101.

It can be written as a sum of positive squares in 2 ways, for example, as 85945130896 + 15275971216 = 293164^2 + 123596^2 .

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, 121659563 + ... + 121660394.

Almost surely, 2^101221102112 is an apocalyptic number.

It is an amenable number.

101221102112 is an abundant number, since it is smaller than the sum of its proper divisors (113387100844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101221102112 is a wasteful number, since it uses less digits than its factorization.

101221102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243319980 (or 243319972 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101221102112 its reverse (211201122101), we get a palindrome (312422224213).

The spelling of 101221102112 in words is "one hundred one billion, two hundred twenty-one million, one hundred two thousand, one hundred twelve".