21022022111112 has 96 divisors (see below), whose sum is σ = 62112487862880. Its totient is φ = 6370107886080.

The previous prime is 21022022111081. The next prime is 21022022111137. The reversal of 21022022111112 is 21111122022012.

21022022111112 is a `hidden beast` number, since 210 + 220 + 2 + 211 + 11 + 12 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25607568 + ... + 26415744.

It is an arithmetic number, because the mean of its divisors is an integer number (647005081905).

Almost surely, 2^{21022022111112} is an apocalyptic number.

21022022111112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21022022111112 is an abundant number, since it is smaller than the sum of its proper divisors (41090465751768).

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

21022022111112 is a wasteful number, since it uses less digits than its factorization.

21022022111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841043 (or 841036 counting only the distinct ones).

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

Adding to 21022022111112 its reverse (21111122022012), we get a palindrome (42133144133124).

The spelling of 21022022111112 in words is "twenty-one trillion, twenty-two billion, twenty-two million, one hundred eleven thousand, one hundred twelve".