2221013131 has 8 divisors (see below), whose sum is σ = 2234089728. Its totient is φ = 2207952000.

The previous prime is 2221013107. The next prime is 2221013143. The reversal of 2221013131 is 1313101222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221013131 - 2²⁵ = 2187458699 is a prime.

It is a super-2 number, since 2×2221013131² = 9865798656148846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221010131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410061 + ... + 415441.

It is an arithmetic number, because the mean of its divisors is an integer number (279261216).

Almost surely, 2^2221013131 is an apocalyptic number.

2221013131 is a deficient number, since it is larger than the sum of its proper divisors (13076597).

2221013131 is a wasteful number, since it uses less digits than its factorization.

2221013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7733.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2221013131 is about 47127.6259851905. The cubic root of 2221013131 is about 1304.7191658480.

Adding to 2221013131 its reverse (1313101222), we get a palindrome (3534114353).

The spelling of 2221013131 in words is "two billion, two hundred twenty-one million, thirteen thousand, one hundred thirty-one".