1000021122131 has 2 divisors, whose sum is σ = 1000021122132. Its totient is φ = 1000021122130.

The previous prime is 1000021122119. The next prime is 1000021122137. The reversal of 1000021122131 is 1312211200001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000021122131 - 2²² = 1000016927827 is a prime.

It is a super-2 number, since 2×1000021122131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1000021122137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010561065 + 500010561066.

It is an arithmetic number, because the mean of its divisors is an integer number (500010561066).

Almost surely, 2^{1000021122131} is an apocalyptic number.

1000021122131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000021122131 is an equidigital number, since it uses as much as digits as its factorization.

1000021122131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1000021122131 its reverse (1312211200001), we get a palindrome (2312232322132).

The spelling of 1000021122131 in words is "one trillion, twenty-one million, one hundred twenty-two thousand, one hundred thirty-one".