122321221212131 has 4 divisors (see below), whose sum is σ = 122332838776200. Its totient is φ = 122309603648064.

The previous prime is 122321221212121. The next prime is 122321221212149. The reversal of 122321221212131 is 131212122123221.

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-122321221212131 is a prime.

It is a super-2 number, since 2×122321221212131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122321221212131.

It is not an unprimeable number, because it can be changed into a prime (122321221212121) 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, 5808766241 + ... + 5808787298.

It is an arithmetic number, because the mean of its divisors is an integer number (30583209694050).

Almost surely, 2^{122321221212131} is an apocalyptic number.

122321221212131 is a deficient number, since it is larger than the sum of its proper divisors (11617564069).

122321221212131 is a wasteful number, since it uses less digits than its factorization.

122321221212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11617564068.

The product of its digits is 1152, while the sum is 26.

Adding to 122321221212131 its reverse (131212122123221), we get a palindrome (253533343335352).

The spelling of 122321221212131 in words is "one hundred twenty-two trillion, three hundred twenty-one billion, two hundred twenty-one million, two hundred twelve thousand, one hundred thirty-one".