2221644131 has 8 divisors (see below), whose sum is σ = 2540160000. Its totient is φ = 1903412808.

The previous prime is 2221644127. The next prime is 2221644193. The reversal of 2221644131 is 1314461222.

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 2221644131 - 2² = 2221644127 is a prime.

It is a super-2 number, since 2×2221644131² = 9871405289613490322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2221644131.

It is not an unprimeable number, because it can be changed into a prime (2221640131) 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, 54131 + ... + 85868.

It is an arithmetic number, because the mean of its divisors is an integer number (317520000).

Almost surely, 2^2221644131 is an apocalyptic number.

2221644131 is a deficient number, since it is larger than the sum of its proper divisors (318515869).

2221644131 is a wasteful number, since it uses less digits than its factorization.

2221644131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142273.

The product of its digits is 2304, while the sum is 26.

The square root of 2221644131 is about 47134.3200969315. The cubic root of 2221644131 is about 1304.8427130449.

The spelling of 2221644131 in words is "two billion, two hundred twenty-one million, six hundred forty-four thousand, one hundred thirty-one".