222221212100131 has 2 divisors, whose sum is σ = 222221212100132. Its totient is φ = 222221212100130.

The previous prime is 222221212100089. The next prime is 222221212100137. The reversal of 222221212100131 is 131001212122222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222221212100131 - 2¹⁵ = 222221212067363 is a prime.

It is a super-2 number, since 2×222221212100131² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222221212100137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110606050065 + 111110606050066.

It is an arithmetic number, because the mean of its divisors is an integer number (111110606050066).

Almost surely, 2^{222221212100131} is an apocalyptic number.

222221212100131 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221212100131 is an equidigital number, since it uses as much as digits as its factorization.

222221212100131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 222221212100131 its reverse (131001212122222), we get a palindrome (353222424222353).

The spelling of 222221212100131 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, one hundred thousand, one hundred thirty-one".