20222112120121 has 4 divisors (see below), whose sum is σ = 20223368870544. Its totient is φ = 20220855369700.

The previous prime is 20222112120103. The next prime is 20222112120143. The reversal of 20222112120121 is 12102121122202.

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 20222112120121 - 2²⁹ = 20221575249209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20222112120151) 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, 628351075 + ... + 628383256.

It is an arithmetic number, because the mean of its divisors is an integer number (5055842217636).

Almost surely, 2^{20222112120121} is an apocalyptic number.

It is an amenable number.

20222112120121 is a deficient number, since it is larger than the sum of its proper divisors (1256750423).

20222112120121 is a wasteful number, since it uses less digits than its factorization.

20222112120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256750422.

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

Adding to 20222112120121 its reverse (12102121122202), we get a palindrome (32324233242323).

The spelling of 20222112120121 in words is "twenty trillion, two hundred twenty-two billion, one hundred twelve million, one hundred twenty thousand, one hundred twenty-one".