10112000001021 has 6 divisors (see below), whose sum is σ = 14606222223710. Its totient is φ = 6741333334008.

The previous prime is 10112000000987. The next prime is 10112000001073. The reversal of 10112000001021 is 12010000021101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7570889825625 + 2541110175396 = 2751525^2 + 1594086^2 .

It is not a de Polignac number, because 10112000001021 - 2⁶ = 10112000000957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1123555555669 = 10112000001021 / (1 + 0 + 1 + 1 + 2 + 0 + 0 + 0 + 0 + 0 + 1 + 0 + 2 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112000000994 and 10112000001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112000001121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 561777777826 + ... + 561777777843.

Almost surely, 2^{10112000001021} is an apocalyptic number.

It is an amenable number.

10112000001021 is a deficient number, since it is larger than the sum of its proper divisors (4494222222689).

10112000001021 is a wasteful number, since it uses less digits than its factorization.

10112000001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123555555675 (or 1123555555672 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10112000001021 its reverse (12010000021101), we get a palindrome (22122000022122).

The spelling of 10112000001021 in words is "ten trillion, one hundred twelve billion, one thousand, twenty-one".