222221212002131 has 2 divisors, whose sum is σ = 222221212002132. Its totient is φ = 222221212002130.

The previous prime is 222221212002089. The next prime is 222221212002151. The reversal of 222221212002131 is 131200212122222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222221212002131 is a prime.

It is a super-2 number, since 2×222221212002131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222221212002097 and 222221212002106.

It is not a weakly prime, because it can be changed into another prime (222221212002151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110606001065 + 111110606001066.

It is an arithmetic number, because the mean of its divisors is an integer number (111110606001066).

Almost surely, 2^{222221212002131} is an apocalyptic number.

222221212002131 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221212002131 is an equidigital number, since it uses as much as digits as its factorization.

222221212002131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 222221212002131 its reverse (131200212122222), we get a palindrome (353421424124353).

The spelling of 222221212002131 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, two thousand, one hundred thirty-one".