2122222020121 has 8 divisors (see below), whose sum is σ = 2425407151680. Its totient is φ = 1819039527888.

The previous prime is 2122222020101. The next prime is 2122222020173. The reversal of 2122222020121 is 1210202222212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2122222020121 - 2⁹ = 2122222019609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122222020101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561950 + ... + 2585368.

It is an arithmetic number, because the mean of its divisors is an integer number (303175893960).

Almost surely, 2^{2122222020121} is an apocalyptic number.

It is an amenable number.

2122222020121 is a deficient number, since it is larger than the sum of its proper divisors (303185131559).

2122222020121 is a wasteful number, since it uses less digits than its factorization.

2122222020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319663.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2122222020121 its reverse (1210202222212), we get a palindrome (3332424242333).

The spelling of 2122222020121 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-two million, twenty thousand, one hundred twenty-one".