122501155331 has 4 divisors (see below), whose sum is σ = 122506371192. Its totient is φ = 122495939472.

The previous prime is 122501155297. The next prime is 122501155333. The reversal of 122501155331 is 133551105221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122501155331 is a prime.

It is a super-2 number, since 2×122501155331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122501155294 and 122501155303.

It is not an unprimeable number, because it can be changed into a prime (122501155333) 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, 2572541 + ... + 2619726.

It is an arithmetic number, because the mean of its divisors is an integer number (30626592798).

Almost surely, 2^122501155331 is an apocalyptic number.

122501155331 is a deficient number, since it is larger than the sum of its proper divisors (5215861).

122501155331 is an equidigital number, since it uses as much as digits as its factorization.

122501155331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5215860.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 122501155331 in words is "one hundred twenty-two billion, five hundred one million, one hundred fifty-five thousand, three hundred thirty-one".