2155524122 has 16 divisors (see below), whose sum is σ = 3520821600. Its totient is φ = 985829040.

The previous prime is 2155524083. The next prime is 2155524139. The reversal of 2155524122 is 2214255512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976904 + ... + 979107.

It is an arithmetic number, because the mean of its divisors is an integer number (220051350).

Almost surely, 2^2155524122 is an apocalyptic number.

2155524122 is a deficient number, since it is larger than the sum of its proper divisors (1365297478).

2155524122 is a wasteful number, since it uses less digits than its factorization.

2155524122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956061.

The product of its digits is 8000, while the sum is 29.

The square root of 2155524122 is about 46427.6224030480. The cubic root of 2155524122 is about 1291.7673274328.

Adding to 2155524122 its reverse (2214255512), we get a palindrome (4369779634).

The spelling of 2155524122 in words is "two billion, one hundred fifty-five million, five hundred twenty-four thousand, one hundred twenty-two".