2022120000121 has 4 divisors (see below), whose sum is σ = 2177667692452. Its totient is φ = 1866572307792.

The previous prime is 2022120000107. The next prime is 2022120000127. The reversal of 2022120000121 is 1210000212202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 777634730896 + 1244485269225 = 881836^2 + 1115565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022120000121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 155547692317 = 2022120000121 / (2 + 0 + 2 + 2 + 1 + 2 + 0 + 0 + 0 + 0 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2022120000127) 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, 77773846146 + ... + 77773846171.

It is an arithmetic number, because the mean of its divisors is an integer number (544416923113).

Almost surely, 2^{2022120000121} is an apocalyptic number.

It is an amenable number.

2022120000121 is a deficient number, since it is larger than the sum of its proper divisors (155547692331).

2022120000121 is a wasteful number, since it uses less digits than its factorization.

2022120000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155547692330.

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

Adding to 2022120000121 its reverse (1210000212202), we get a palindrome (3232120212323).

The spelling of 2022120000121 in words is "two trillion, twenty-two billion, one hundred twenty million, one hundred twenty-one", and thus it is an aban number.