122355555 has 32 divisors (see below), whose sum is σ = 224944128. Its totient is φ = 55632000.

The previous prime is 122355551. The next prime is 122355577. The reversal of 122355555 is 555553221.

It is not a de Polignac number, because 122355555 - 2² = 122355551 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (122355551) 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, 17005 + ... + 23105.

It is an arithmetic number, because the mean of its divisors is an integer number (7029504).

Almost surely, 2^122355555 is an apocalyptic number.

122355555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122355555 is a deficient number, since it is larger than the sum of its proper divisors (102588573).

122355555 is a wasteful number, since it uses less digits than its factorization.

122355555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307.

The product of its digits is 37500, while the sum is 33.

The square root of 122355555 is about 11061.4445259197. Note that the first 3 decimals coincide. The cubic root of 122355555 is about 496.4489125965.

The spelling of 122355555 in words is "one hundred twenty-two million, three hundred fifty-five thousand, five hundred fifty-five".