2122505555 has 16 divisors (see below), whose sum is σ = 2639019744. Its totient is φ = 1637475840.

The previous prime is 2122505537. The next prime is 2122505569. The reversal of 2122505555 is 5555052212.

It is not a de Polignac number, because 2122505555 - 2²⁶ = 2055396691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29861 + ... + 71670.

It is an arithmetic number, because the mean of its divisors is an integer number (164938734).

Almost surely, 2^2122505555 is an apocalyptic number.

2122505555 is a deficient number, since it is larger than the sum of its proper divisors (516514189).

2122505555 is a wasteful number, since it uses less digits than its factorization.

2122505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101686.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 2122505555 is about 46070.6582870269. The cubic root of 2122505555 is about 1285.1375457747.

Adding to 2122505555 its reverse (5555052212), we get a palindrome (7677557767).

The spelling of 2122505555 in words is "two billion, one hundred twenty-two million, five hundred five thousand, five hundred fifty-five".