122203155 has 32 divisors (see below), whose sum is σ = 206461440. Its totient is φ = 61551360.

The previous prime is 122203153. The next prime is 122203177. The reversal of 122203155 is 551302221.

It is not a de Polignac number, because 122203155 - 2¹ = 122203153 is a prime.

It is a super-2 number, since 2×122203155² = 29867222183908050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122203153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148074 + ... + 148896.

It is an arithmetic number, because the mean of its divisors is an integer number (6451920).

Almost surely, 2^122203155 is an apocalyptic number.

122203155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122203155 is a deficient number, since it is larger than the sum of its proper divisors (84258285).

122203155 is a wasteful number, since it uses less digits than its factorization.

122203155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

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

The square root of 122203155 is about 11054.5535866447. The cubic root of 122203155 is about 496.2427095943.

Adding to 122203155 its reverse (551302221), we get a palindrome (673505376).

The spelling of 122203155 in words is "one hundred twenty-two million, two hundred three thousand, one hundred fifty-five".