2221239155 has 8 divisors (see below), whose sum is σ = 2665952784. Its totient is φ = 1776680800.

The previous prime is 2221239113. The next prime is 2221239161. The reversal of 2221239155 is 5519321222.

2221239155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2221239155 is a prime.

It is a super-2 number, since 2×2221239155² = 9867806767410228050, which contains 22 as substring.

It is a Duffinian number.

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, 4601 + ... + 66810.

It is an arithmetic number, because the mean of its divisors is an integer number (333244098).

Almost surely, 2^2221239155 is an apocalyptic number.

2221239155 is a deficient number, since it is larger than the sum of its proper divisors (444713629).

2221239155 is an equidigital number, since it uses as much as digits as its factorization.

2221239155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77637.

The product of its digits is 10800, while the sum is 32.

The square root of 2221239155 is about 47130.0239231851. The cubic root of 2221239155 is about 1304.7634231042.

The spelling of 2221239155 in words is "two billion, two hundred twenty-one million, two hundred thirty-nine thousand, one hundred fifty-five".