112100202122021 has 4 divisors (see below), whose sum is σ = 112262431069344. Its totient is φ = 111937973174700.

The previous prime is 112100202121991. The next prime is 112100202122033. The reversal of 112100202122021 is 120221202001211.

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 112100202122021 - 2¹⁴ = 112100202105637 is a prime.

It is a super-2 number, since 2×112100202122021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112100202122071) 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, 81114472625 + ... + 81114474006.

It is an arithmetic number, because the mean of its divisors is an integer number (28065607767336).

Almost surely, 2^{112100202122021} is an apocalyptic number.

It is an amenable number.

112100202122021 is a deficient number, since it is larger than the sum of its proper divisors (162228947323).

112100202122021 is an equidigital number, since it uses as much as digits as its factorization.

112100202122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162228947322.

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

Adding to 112100202122021 its reverse (120221202001211), we get a palindrome (232321404123232).

The spelling of 112100202122021 in words is "one hundred twelve trillion, one hundred billion, two hundred two million, one hundred twenty-two thousand, twenty-one".