21122200222112 has 48 divisors (see below), whose sum is σ = 45412629810912. Its totient is φ = 9590861617920.

The previous prime is 21122200222091. The next prime is 21122200222213.

21122200222112 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21122200222112² (a number of 27 digits) contains 22 as substring.

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, 31348943 + ... + 32015630.

It is an arithmetic number, because the mean of its divisors is an integer number (946096454394).

Almost surely, 2^{21122200222112} is an apocalyptic number.

21122200222112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21122200222112 is an abundant number, since it is smaller than the sum of its proper divisors (24290429588800).

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

21122200222112 is a wasteful number, since it uses less digits than its factorization.

21122200222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63365541 (or 63365533 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

It can be divided in two parts, 21122200 and 222112, that added together give a palindrome (21344312).

The spelling of 21122200222112 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred million, two hundred twenty-two thousand, one hundred twelve".