21022211210112 has 96 divisors (see below), whose sum is σ = 69135545821680. Its totient is φ = 6006346057728.

The previous prime is 21022211210111. The next prime is 21022211210113. The reversal of 21022211210112 is 21101211222012.

21022211210112 is a `hidden beast` number, since 210 + 2 + 221 + 121 + 0 + 112 = 666.

It is an interprime number because it is at equal distance from previous prime (21022211210111) and next prime (21022211210113).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×21022211210112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022211210111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1303452453 + ... + 1303468580.

Almost surely, 2^{21022211210112} is an apocalyptic number.

It is an amenable number.

21022211210112 is an abundant number, since it is smaller than the sum of its proper divisors (48113334611568).

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

21022211210112 is a wasteful number, since it uses less digits than its factorization.

21022211210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606921060 (or 2606921045 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 21022211210112 its reverse (21101211222012), we get a palindrome (42123422432124).

The spelling of 21022211210112 in words is "twenty-one trillion, twenty-two billion, two hundred eleven million, two hundred ten thousand, one hundred twelve".