2220012155 has 16 divisors (see below), whose sum is σ = 2808664320. Its totient is φ = 1679872608.

The previous prime is 2220012149. The next prime is 2220012163. The reversal of 2220012155 is 5512100222.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220012155 is a prime.

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, 42914 + ... + 79256.

It is an arithmetic number, because the mean of its divisors is an integer number (175541520).

Almost surely, 2^2220012155 is an apocalyptic number.

2220012155 is a deficient number, since it is larger than the sum of its proper divisors (588652165).

2220012155 is a wasteful number, since it uses less digits than its factorization.

2220012155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37010.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2220012155 is about 47117.0049451363. The cubic root of 2220012155 is about 1304.5231308644.

Adding to 2220012155 its reverse (5512100222), we get a palindrome (7732112377).

The spelling of 2220012155 in words is "two billion, two hundred twenty million, twelve thousand, one hundred fifty-five".