10012012010021 has 8 divisors (see below), whose sum is σ = 11836861489920. Its totient is φ = 8285803042608.

The previous prime is 10012012009999. The next prime is 10012012010053. The reversal of 10012012010021 is 12001021021001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-10012012010021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012012009984 and 10012012010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012012010071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24660127901 + ... + 24660128306.

It is an arithmetic number, because the mean of its divisors is an integer number (1479607686240).

Almost surely, 2^{10012012010021} is an apocalyptic number.

It is an amenable number.

10012012010021 is a deficient number, since it is larger than the sum of its proper divisors (1824849479899).

10012012010021 is an equidigital number, since it uses as much as digits as its factorization.

10012012010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49320256243.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10012012010021 its reverse (12001021021001), we get a palindrome (22013033031022).

The spelling of 10012012010021 in words is "ten trillion, twelve billion, twelve million, ten thousand, twenty-one".