20220212211121 has 32 divisors (see below), whose sum is σ = 23135711961600. Its totient is φ = 17506653265920.

The previous prime is 20220212211113. The next prime is 20220212211131. The reversal of 20220212211121 is 12111221202202.

It is not a de Polignac number, because 20220212211121 - 2³ = 20220212211113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220212211131) 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, 77889825 + ... + 78148993.

It is an arithmetic number, because the mean of its divisors is an integer number (722990998800).

Almost surely, 2^{20220212211121} is an apocalyptic number.

It is an amenable number.

20220212211121 is a deficient number, since it is larger than the sum of its proper divisors (2915499750479).

20220212211121 is a wasteful number, since it uses less digits than its factorization.

20220212211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260409.

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

Adding to 20220212211121 its reverse (12111221202202), we get a palindrome (32331433413323).

The spelling of 20220212211121 in words is "twenty trillion, two hundred twenty billion, two hundred twelve million, two hundred eleven thousand, one hundred twenty-one".