22022220120121 has 16 divisors (see below), whose sum is σ = 23756752159504. Its totient is φ = 20293496745984.

The previous prime is 22022220120119. The next prime is 22022220120137. The reversal of 22022220120121 is 12102102222022.

It can be written as a sum of positive squares in 8 ways, for example, as 636580579600 + 21385639540521 = 797860^2 + 4624461^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022220120121 - 2¹ = 22022220120119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22022220126121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25086205 + ... + 25949221.

It is an arithmetic number, because the mean of its divisors is an integer number (1484797009969).

Almost surely, 2^{22022220120121} is an apocalyptic number.

It is an amenable number.

22022220120121 is a deficient number, since it is larger than the sum of its proper divisors (1734532039383).

22022220120121 is a wasteful number, since it uses less digits than its factorization.

22022220120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866380.

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

Adding to 22022220120121 its reverse (12102102222022), we get a palindrome (34124322342143).

The spelling of 22022220120121 in words is "twenty-two trillion, twenty-two billion, two hundred twenty million, one hundred twenty thousand, one hundred twenty-one".