122001231020131 has 4 divisors (see below), whose sum is σ = 122023481842872. Its totient is φ = 121978980197392.

The previous prime is 122001231020069. The next prime is 122001231020171. The reversal of 122001231020131 is 131020132100221.

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

It is a cyclic number.

It is not a de Polignac number, because 122001231020131 - 2¹¹ = 122001231018083 is a prime.

It is a super-2 number, since 2×122001231020131² (a number of 29 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 = 122001231020099 and 122001231020108.

It is not an unprimeable number, because it can be changed into a prime (122001231020171) 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, 11125403146 + ... + 11125414111.

It is an arithmetic number, because the mean of its divisors is an integer number (30505870460718).

Almost surely, 2^{122001231020131} is an apocalyptic number.

122001231020131 is a deficient number, since it is larger than the sum of its proper divisors (22250822741).

122001231020131 is an equidigital number, since it uses as much as digits as its factorization.

122001231020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22250822740.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 122001231020131 its reverse (131020132100221), we get a palindrome (253021363120352).

The spelling of 122001231020131 in words is "one hundred twenty-two trillion, one billion, two hundred thirty-one million, twenty thousand, one hundred thirty-one".