122155203 has 4 divisors (see below), whose sum is σ = 162873608. Its totient is φ = 81436800.

The previous prime is 122155177. The next prime is 122155213. The reversal of 122155203 is 302551221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122155203 - 2²¹ = 120058051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122155203.

It is not an unprimeable number, because it can be changed into a prime (122155213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20359198 + ... + 20359203.

It is an arithmetic number, because the mean of its divisors is an integer number (40718402).

Almost surely, 2^122155203 is an apocalyptic number.

122155203 is a deficient number, since it is larger than the sum of its proper divisors (40718405).

122155203 is an equidigital number, since it uses as much as digits as its factorization.

122155203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40718404.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 122155203 is about 11052.3844938547. The cubic root of 122155203 is about 496.1777932574.

The spelling of 122155203 in words is "one hundred twenty-two million, one hundred fifty-five thousand, two hundred three".