21112022212112 has 80 divisors (see below), whose sum is σ = 47338438396032. Its totient is φ = 9033954969600.

The previous prime is 21112022212093. The next prime is 21112022212123. The reversal of 21112022212112 is 21121222021112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44319764 + ... + 44793587.

Almost surely, 2^{21112022212112} is an apocalyptic number.

It is an amenable number.

21112022212112 is an abundant number, since it is smaller than the sum of its proper divisors (26226416183920).

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

21112022212112 is a wasteful number, since it uses less digits than its factorization.

21112022212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89113456 (or 89113450 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 21112022212112 its reverse (21121222021112), we get a palindrome (42233244233224).

The spelling of 21112022212112 in words is "twenty-one trillion, one hundred twelve billion, twenty-two million, two hundred twelve thousand, one hundred twelve".