122205655 has 32 divisors (see below), whose sum is σ = 174924288. Its totient is φ = 80784000.

The previous prime is 122205649. The next prime is 122205661. The reversal of 122205655 is 556502221.

It is an interprime number because it is at equal distance from previous prime (122205649) and next prime (122205661).

It is a de Polignac number, because none of the positive numbers 2^k-122205655 is a prime.

It is a super-2 number, since 2×122205655² = 29868444227958050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46630 + ... + 49180.

It is an arithmetic number, because the mean of its divisors is an integer number (5466384).

Almost surely, 2^122205655 is an apocalyptic number.

122205655 is a deficient number, since it is larger than the sum of its proper divisors (52718633).

122205655 is a wasteful number, since it uses less digits than its factorization.

122205655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 122205655 is about 11054.6666616411. Note that the first 5 decimals coincide. The cubic root of 122205655 is about 496.2460935722.

Adding to 122205655 its reverse (556502221), we get a palindrome (678707876).

The spelling of 122205655 in words is "one hundred twenty-two million, two hundred five thousand, six hundred fifty-five".