122120406015 has 32 divisors (see below), whose sum is σ = 207339238080. Its totient is φ = 61165461504.

The previous prime is 122120406011. The next prime is 122120406041. The reversal of 122120406015 is 510604021221.

It is not a de Polignac number, because 122120406015 - 2² = 122120406011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120406011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407430 + ... + 640499.

It is an arithmetic number, because the mean of its divisors is an integer number (6479351190).

Almost surely, 2^122120406015 is an apocalyptic number.

122120406015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122120406015 is a deficient number, since it is larger than the sum of its proper divisors (85218832065).

122120406015 is a wasteful number, since it uses less digits than its factorization.

122120406015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048411.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 122120406015 its reverse (510604021221), we get a palindrome (632724427236).

The spelling of 122120406015 in words is "one hundred twenty-two billion, one hundred twenty million, four hundred six thousand, fifteen".