2221220033131 has 16 divisors (see below), whose sum is σ = 2426311875456. Its totient is φ = 2016657000000.

The previous prime is 2221220033119. The next prime is 2221220033141. The reversal of 2221220033131 is 1313300221222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221220033131 is a prime.

It is a super-2 number, since 2×2221220033131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221220033141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27381631 + ... + 27462631.

It is an arithmetic number, because the mean of its divisors is an integer number (151644492216).

Almost surely, 2^{2221220033131} is an apocalyptic number.

2221220033131 is a deficient number, since it is larger than the sum of its proper divisors (205091842325).

2221220033131 is a wasteful number, since it uses less digits than its factorization.

2221220033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84234.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2221220033131 its reverse (1313300221222), we get a palindrome (3534520254353).

The spelling of 2221220033131 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, thirty-three thousand, one hundred thirty-one".