1002021222131 has 2 divisors, whose sum is σ = 1002021222132. Its totient is φ = 1002021222130.

The previous prime is 1002021222067. The next prime is 1002021222149. The reversal of 1002021222131 is 1312221202001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002021222131 - 2⁶ = 1002021222067 is a prime.

It is a super-2 number, since 2×1002021222131² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1002021222151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501010611065 + 501010611066.

It is an arithmetic number, because the mean of its divisors is an integer number (501010611066).

Almost surely, 2^{1002021222131} is an apocalyptic number.

1002021222131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002021222131 is an equidigital number, since it uses as much as digits as its factorization.

1002021222131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1002021222131 its reverse (1312221202001), we get a palindrome (2314242424132).

The spelling of 1002021222131 in words is "one trillion, two billion, twenty-one million, two hundred twenty-two thousand, one hundred thirty-one".