112020211212121 has 4 divisors (see below), whose sum is σ = 115633766412544. Its totient is φ = 108406656011700.

The previous prime is 112020211212079. The next prime is 112020211212157. The reversal of 112020211212121 is 121212112020211.

It is a happy number.

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 112020211212121 - 2²¹ = 112020209114969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112020211212191) 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, 1806777600165 + ... + 1806777600226.

It is an arithmetic number, because the mean of its divisors is an integer number (28908441603136).

Almost surely, 2^{112020211212121} is an apocalyptic number.

It is an amenable number.

112020211212121 is a deficient number, since it is larger than the sum of its proper divisors (3613555200423).

112020211212121 is an equidigital number, since it uses as much as digits as its factorization.

112020211212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613555200422.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 112020211212121 its reverse (121212112020211), we get a palindrome (233232323232332).

The spelling of 112020211212121 in words is "one hundred twelve trillion, twenty billion, two hundred eleven million, two hundred twelve thousand, one hundred twenty-one".