122440635311 has 2 divisors, whose sum is σ = 122440635312. Its totient is φ = 122440635310.

The previous prime is 122440635299. The next prime is 122440635349. The reversal of 122440635311 is 113536044221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122440635311 - 2²² = 122436441007 is a prime.

It is a super-2 number, since 2×122440635311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122440635011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61220317655 + 61220317656.

It is an arithmetic number, because the mean of its divisors is an integer number (61220317656).

Almost surely, 2^122440635311 is an apocalyptic number.

122440635311 is a deficient number, since it is larger than the sum of its proper divisors (1).

122440635311 is an equidigital number, since it uses as much as digits as its factorization.

122440635311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 122440635311 its reverse (113536044221), we get a palindrome (235976679532).

The spelling of 122440635311 in words is "one hundred twenty-two billion, four hundred forty million, six hundred thirty-five thousand, three hundred eleven".