2221053156 has 96 divisors (see below), whose sum is σ = 6793256960. Its totient is φ = 614109600.

The previous prime is 2221053143. The next prime is 2221053173. The reversal of 2221053156 is 6513501222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 23950 + ... + 70821.

Almost surely, 2^2221053156 is an apocalyptic number.

It is an amenable number.

2221053156 is an abundant number, since it is smaller than the sum of its proper divisors (4572203804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221053156 is a wasteful number, since it uses less digits than its factorization.

2221053156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94822 (or 94814 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2221053156 is about 47128.0506280495. The cubic root of 2221053156 is about 1304.7270032729.

Adding to 2221053156 its reverse (6513501222), we get a palindrome (8734554378).

The spelling of 2221053156 in words is "two billion, two hundred twenty-one million, fifty-three thousand, one hundred fifty-six".