122215263 has 16 divisors (see below), whose sum is σ = 165026400. Its totient is φ = 80446464.

The previous prime is 122215231. The next prime is 122215273. The reversal of 122215263 is 362512221.

It is not a de Polignac number, because 122215263 - 2⁵ = 122215231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122215273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117795 + ... + 118827.

It is an arithmetic number, because the mean of its divisors is an integer number (10314150).

Almost surely, 2^122215263 is an apocalyptic number.

122215263 is a deficient number, since it is larger than the sum of its proper divisors (42811137).

122215263 is a wasteful number, since it uses less digits than its factorization.

122215263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498.

The product of its digits is 1440, while the sum is 24.

The square root of 122215263 is about 11055.1012207035. The cubic root of 122215263 is about 496.2590984464.

Adding to 122215263 its reverse (362512221), we get a palindrome (484727484).

The spelling of 122215263 in words is "one hundred twenty-two million, two hundred fifteen thousand, two hundred sixty-three".