2220661133 has 4 divisors (see below), whose sum is σ = 2220774528. Its totient is φ = 2220547740.

The previous prime is 2220661129. The next prime is 2220661139. The reversal of 2220661133 is 3311660222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2220661133 - 2² = 2220661129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220661139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18941 + ... + 69282.

It is an arithmetic number, because the mean of its divisors is an integer number (555193632).

Almost surely, 2^2220661133 is an apocalyptic number.

It is an amenable number.

2220661133 is a deficient number, since it is larger than the sum of its proper divisors (113395).

2220661133 is an equidigital number, since it uses as much as digits as its factorization.

2220661133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113394.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2220661133 is about 47123.8913185233. The cubic root of 2220661133 is about 1304.6502359236.

The spelling of 2220661133 in words is "two billion, two hundred twenty million, six hundred sixty-one thousand, one hundred thirty-three".