221002223333131 has 2 divisors, whose sum is σ = 221002223333132. Its totient is φ = 221002223333130.

The previous prime is 221002223333029. The next prime is 221002223333147. The reversal of 221002223333131 is 131333322200122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221002223333131 - 2¹¹ = 221002223331083 is a prime.

It is a super-2 number, since 2×221002223333131² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221002223333131.

It is not a weakly prime, because it can be changed into another prime (221002223334131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501111666565 + 110501111666566.

It is an arithmetic number, because the mean of its divisors is an integer number (110501111666566).

Almost surely, 2^{221002223333131} is an apocalyptic number.

221002223333131 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002223333131 is an equidigital number, since it uses as much as digits as its factorization.

221002223333131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 221002223333131 its reverse (131333322200122), we get a palindrome (352335545533253).

The spelling of 221002223333131 in words is "two hundred twenty-one trillion, two billion, two hundred twenty-three million, three hundred thirty-three thousand, one hundred thirty-one".