112220010000021 has 128 divisors (see below), whose sum is σ = 190090037329920. Its totient is φ = 57200962464000.

The previous prime is 112220009999983. The next prime is 112220010000037. The reversal of 112220010000021 is 120000010022211.

It is not a de Polignac number, because 112220010000021 - 2¹⁷ = 112220009868949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112220009999961 and 112220010000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112220010000821) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1825783336 + ... + 1825844798.

It is an arithmetic number, because the mean of its divisors is an integer number (1485078416640).

Almost surely, 2^{112220010000021} is an apocalyptic number.

112220010000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112220010000021 is a deficient number, since it is larger than the sum of its proper divisors (77870027329899).

112220010000021 is a wasteful number, since it uses less digits than its factorization.

112220010000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62287.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112220010000021 its reverse (120000010022211), we get a palindrome (232220020022232).

The spelling of 112220010000021 in words is "one hundred twelve trillion, two hundred twenty billion, ten million, twenty-one", and thus it is an aban number.