122172262 has 4 divisors (see below), whose sum is σ = 183258396. Its totient is φ = 61086130.

The previous prime is 122172247. The next prime is 122172263. The reversal of 122172262 is 262271221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 262271221 = 1213 ⋅216217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122172263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30543064 + ... + 30543067.

It is an arithmetic number, because the mean of its divisors is an integer number (45814599).

Almost surely, 2^122172262 is an apocalyptic number.

122172262 is a deficient number, since it is larger than the sum of its proper divisors (61086134).

122172262 is an equidigital number, since it uses as much as digits as its factorization.

122172262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61086133.

The product of its digits is 1344, while the sum is 25.

The square root of 122172262 is about 11053.1562008324. The cubic root of 122172262 is about 496.2008892937.

The spelling of 122172262 in words is "one hundred twenty-two million, one hundred seventy-two thousand, two hundred sixty-two".