1000021012037 has 2 divisors, whose sum is σ = 1000021012038. Its totient is φ = 1000021012036.

The previous prime is 1000021012033. The next prime is 1000021012141. The reversal of 1000021012037 is 7302101200001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 706055353441 + 293965658596 = 840271^2 + 542186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000021012037 - 2² = 1000021012033 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000021012033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010506018 + 500010506019.

It is an arithmetic number, because the mean of its divisors is an integer number (500010506019).

Almost surely, 2^{1000021012037} is an apocalyptic number.

It is an amenable number.

1000021012037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000021012037 is an equidigital number, since it uses as much as digits as its factorization.

1000021012037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

Adding to 1000021012037 its reverse (7302101200001), we get a palindrome (8302122212038).

The spelling of 1000021012037 in words is "one trillion, twenty-one million, twelve thousand, thirty-seven".