21110201122112 has 56 divisors (see below), whose sum is σ = 43335948034560. Its totient is φ = 10190922094080.

The previous prime is 21110201122079. The next prime is 21110201122147. The reversal of 21110201122112 is 21122110201112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128039153 + ... + 128203919.

Almost surely, 2^{21110201122112} is an apocalyptic number.

It is an amenable number.

21110201122112 is an abundant number, since it is smaller than the sum of its proper divisors (22225746912448).

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

21110201122112 is a wasteful number, since it uses less digits than its factorization.

21110201122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233839 (or 233829 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 21110201122112 its reverse (21122110201112), we get a palindrome (42232311323224).

The spelling of 21110201122112 in words is "twenty-one trillion, one hundred ten billion, two hundred one million, one hundred twenty-two thousand, one hundred twelve".