20122122015 has 48 divisors (see below), whose sum is σ = 35363528928. Its totient is φ = 10582990848.

The previous prime is 20122122001. The next prime is 20122122019. The reversal of 20122122015 is 51022122102.

It is not a de Polignac number, because 20122122015 - 2⁸ = 20122121759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122122019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2150427 + ... + 2159763.

It is an arithmetic number, because the mean of its divisors is an integer number (736740186).

Almost surely, 2^20122122015 is an apocalyptic number.

20122122015 is a deficient number, since it is larger than the sum of its proper divisors (15241406913).

20122122015 is a wasteful number, since it uses less digits than its factorization.

20122122015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008 (or 10005 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 20122122015 its reverse (51022122102), we get a palindrome (71144244117).

The spelling of 20122122015 in words is "twenty billion, one hundred twenty-two million, one hundred twenty-two thousand, fifteen".