112221212021 has 32 divisors (see below), whose sum is σ = 117503882496. Its totient is φ = 107110080000.

The previous prime is 112221212017. The next prime is 112221212029. The reversal of 112221212021 is 120212122211.

It is a cyclic number.

It is not a de Polignac number, because 112221212021 - 2² = 112221212017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221212029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160086971 + ... + 160087671.

It is an arithmetic number, because the mean of its divisors is an integer number (3671996328).

Almost surely, 2^112221212021 is an apocalyptic number.

It is an amenable number.

112221212021 is a deficient number, since it is larger than the sum of its proper divisors (5282670475).

112221212021 is an equidigital number, since it uses as much as digits as its factorization.

112221212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 112221212021 its reverse (120212122211), we get a palindrome (232433334232).

The spelling of 112221212021 in words is "one hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, twenty-one".