2122500015121 has 4 divisors (see below), whose sum is σ = 2149367104000. Its totient is φ = 2095632926244.

The previous prime is 2122500015079. The next prime is 2122500015131. The reversal of 2122500015121 is 1215100052212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2122500015121 - 2²⁹ = 2121963144209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122500015092 and 2122500015101.

It is not an unprimeable number, because it can be changed into a prime (2122500015131) 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 3 ways as a sum of consecutive naturals, for example, 13433544321 + ... + 13433544478.

It is an arithmetic number, because the mean of its divisors is an integer number (537341776000).

Almost surely, 2^{2122500015121} is an apocalyptic number.

It is an amenable number.

2122500015121 is a deficient number, since it is larger than the sum of its proper divisors (26867088879).

2122500015121 is an equidigital number, since it uses as much as digits as its factorization.

2122500015121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26867088878.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 2122500015121 its reverse (1215100052212), we get a palindrome (3337600067333).

The spelling of 2122500015121 in words is "two trillion, one hundred twenty-two billion, five hundred million, fifteen thousand, one hundred twenty-one".