122221101131 has 2 divisors, whose sum is σ = 122221101132. Its totient is φ = 122221101130.

The previous prime is 122221101109. The next prime is 122221101151. The reversal of 122221101131 is 131101122221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122221101131 is a prime.

It is a super-2 number, since 2×122221101131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122221101151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110550565 + 61110550566.

It is an arithmetic number, because the mean of its divisors is an integer number (61110550566).

Almost surely, 2^122221101131 is an apocalyptic number.

122221101131 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221101131 is an equidigital number, since it uses as much as digits as its factorization.

122221101131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 122221101131 its reverse (131101122221), we get a palindrome (253322223352).

The spelling of 122221101131 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand, one hundred thirty-one".