2221001320131 has 96 divisors (see below), whose sum is σ = 3646666820160. Its totient is φ = 1334951608320.

The previous prime is 2221001320123. The next prime is 2221001320141. The reversal of 2221001320131 is 1310231001222.

2221001320131 is a `hidden beast` number, since 2 + 2 + 210 + 0 + 1 + 320 + 131 = 666.

It is not a de Polignac number, because 2221001320131 - 2³ = 2221001320123 is a prime.

It is a super-2 number, since 2×2221001320131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221001320141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 195625551 + ... + 195636903.

It is an arithmetic number, because the mean of its divisors is an integer number (37986112710).

Almost surely, 2^{2221001320131} is an apocalyptic number.

2221001320131 is a deficient number, since it is larger than the sum of its proper divisors (1425665500029).

2221001320131 is a wasteful number, since it uses less digits than its factorization.

2221001320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11874 (or 11857 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2221001320131 its reverse (1310231001222), we get a palindrome (3531232321353).

The spelling of 2221001320131 in words is "two trillion, two hundred twenty-one billion, one million, three hundred twenty thousand, one hundred thirty-one".