112212022001221 has 4 divisors (see below), whose sum is σ = 112234468900000. Its totient is φ = 112189575102444.

The previous prime is 112212022001207. The next prime is 112212022001239. The reversal of 112212022001221 is 122100220212211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112212022001221 - 2³³ = 112203432066629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212022001281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11223441891 + ... + 11223451888.

It is an arithmetic number, because the mean of its divisors is an integer number (28058617225000).

Almost surely, 2^{112212022001221} is an apocalyptic number.

It is an amenable number.

112212022001221 is a deficient number, since it is larger than the sum of its proper divisors (22446898779).

112212022001221 is an equidigital number, since it uses as much as digits as its factorization.

112212022001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22446898778.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 112212022001221 its reverse (122100220212211), we get a palindrome (234312242213432).

The spelling of 112212022001221 in words is "one hundred twelve trillion, two hundred twelve billion, twenty-two million, one thousand, two hundred twenty-one".