122201311 has 2 divisors, whose sum is σ = 122201312. Its totient is φ = 122201310.

The previous prime is 122201309. The next prime is 122201329. The reversal of 122201311 is 113102221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122201311 - 2¹ = 122201309 is a prime.

Together with 122201309, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 122201291 and 122201300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122201371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100655 + 61100656.

It is an arithmetic number, because the mean of its divisors is an integer number (61100656).

Almost surely, 2^122201311 is an apocalyptic number.

122201311 is a deficient number, since it is larger than the sum of its proper divisors (1).

122201311 is an equidigital number, since it uses as much as digits as its factorization.

122201311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 122201311 is about 11054.4701817862. The cubic root of 122201311 is about 496.2402135427.

Adding to 122201311 its reverse (113102221), we get a palindrome (235303532).

It can be divided in two parts, 12220 and 1311, that added together give a palindrome (13531).

The spelling of 122201311 in words is "one hundred twenty-two million, two hundred one thousand, three hundred eleven".