22012000020121 has 8 divisors (see below), whose sum is σ = 22126089009024. Its totient is φ = 21898141283040.

The previous prime is 22012000020119. The next prime is 22012000020133. The reversal of 22012000020121 is 12102000021022.

It is a happy number.

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 22012000020121 - 2¹ = 22012000020119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012000020161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57371260 + ... + 57753661.

It is an arithmetic number, because the mean of its divisors is an integer number (2765761126128).

Almost surely, 2^{22012000020121} is an apocalyptic number.

It is an amenable number.

22012000020121 is a deficient number, since it is larger than the sum of its proper divisors (114088988903).

22012000020121 is a wasteful number, since it uses less digits than its factorization.

22012000020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115125911.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22012000020121 its reverse (12102000021022), we get a palindrome (34114000041143).

Subtracting from 22012000020121 its reverse (12102000021022), we obtain a palindrome (9909999999099).

The spelling of 22012000020121 in words is "twenty-two trillion, twelve billion, twenty thousand, one hundred twenty-one".