122355311 has 4 divisors (see below), whose sum is σ = 131767272. Its totient is φ = 112943352.

The previous prime is 122355283. The next prime is 122355347. The reversal of 122355311 is 113553221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113553221 = 173 ⋅656377.

It is a cyclic number.

It is not a de Polignac number, because 122355311 - 2²² = 118161007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122355361) 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 in 3 ways as a sum of consecutive naturals, for example, 4705961 + ... + 4705986.

It is an arithmetic number, because the mean of its divisors is an integer number (32941818).

Almost surely, 2^122355311 is an apocalyptic number.

122355311 is a deficient number, since it is larger than the sum of its proper divisors (9411961).

122355311 is an equidigital number, since it uses as much as digits as its factorization.

122355311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9411960.

The product of its digits is 900, while the sum is 23.

The square root of 122355311 is about 11061.4334966134. The cubic root of 122355311 is about 496.4485825921.

The spelling of 122355311 in words is "one hundred twenty-two million, three hundred fifty-five thousand, three hundred eleven".