122011211131 has 2 divisors, whose sum is σ = 122011211132. Its totient is φ = 122011211130.

The previous prime is 122011211123. The next prime is 122011211149. The reversal of 122011211131 is 131112110221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122011211131 - 2³ = 122011211123 is a prime.

It is a super-2 number, since 2×122011211131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122011211171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005605565 + 61005605566.

It is an arithmetic number, because the mean of its divisors is an integer number (61005605566).

Almost surely, 2^122011211131 is an apocalyptic number.

122011211131 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011211131 is an equidigital number, since it uses as much as digits as its factorization.

122011211131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 122011211131 its reverse (131112110221), we get a palindrome (253123321352).

The spelling of 122011211131 in words is "one hundred twenty-two billion, eleven million, two hundred eleven thousand, one hundred thirty-one".