122111231000031 has 48 divisors (see below), whose sum is σ = 221705497488384. Its totient is φ = 63039887295552.

The previous prime is 122111231000027. The next prime is 122111231000071. The reversal of 122111231000031 is 130000132111221.

It is not a de Polignac number, because 122111231000031 - 2² = 122111231000027 is a prime.

It is a super-2 number, since 2×122111231000031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122111230999968 and 122111231000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111231000071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1586110041 + ... + 1586187026.

It is an arithmetic number, because the mean of its divisors is an integer number (4618864531008).

Almost surely, 2^{122111231000031} is an apocalyptic number.

122111231000031 is a deficient number, since it is larger than the sum of its proper divisors (99594266488353).

122111231000031 is a wasteful number, since it uses less digits than its factorization.

122111231000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172297140 (or 3172297137 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 122111231000031 its reverse (130000132111221), we get a palindrome (252111363111252).

The spelling of 122111231000031 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred thirty-one million, thirty-one", and thus it is an aban number.