122111315238 has 16 divisors (see below), whose sum is σ = 266424687936. Its totient is φ = 37003428840.

The previous prime is 122111315233. The next prime is 122111315243. The reversal of 122111315238 is 832513111221.

122111315238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (122111315233) and next prime (122111315243).

It is a super-2 number, since 2×122111315238² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111315233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925085656 + ... + 925085787.

It is an arithmetic number, because the mean of its divisors is an integer number (16651542996).

Almost surely, 2^122111315238 is an apocalyptic number.

122111315238 is an abundant number, since it is smaller than the sum of its proper divisors (144313372698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122111315238 is a wasteful number, since it uses less digits than its factorization.

122111315238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850171459.

The product of its digits is 2880, while the sum is 30.

Adding to 122111315238 its reverse (832513111221), we get a palindrome (954624426459).

The spelling of 122111315238 in words is "one hundred twenty-two billion, one hundred eleven million, three hundred fifteen thousand, two hundred thirty-eight".