10012021110021 has 12 divisors (see below), whose sum is σ = 15528849068832. Its totient is φ = 5721154919928.

The previous prime is 10012021109999. The next prime is 10012021110023. The reversal of 10012021110021 is 12001112021001.

It is not a de Polignac number, because 10012021110021 - 2¹⁴ = 10012021093637 is a prime.

It is a super-2 number, since 2×10012021110021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10012021109979 and 10012021110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012021110023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34054493425 + ... + 34054493718.

It is an arithmetic number, because the mean of its divisors is an integer number (1294070755736).

Almost surely, 2^{10012021110021} is an apocalyptic number.

It is an amenable number.

10012021110021 is a deficient number, since it is larger than the sum of its proper divisors (5516827958811).

10012021110021 is an equidigital number, since it uses as much as digits as its factorization.

10012021110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68108987160 (or 68108987153 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10012021110021 its reverse (12001112021001), we get a palindrome (22013133131022).

The spelling of 10012021110021 in words is "ten trillion, twelve billion, twenty-one million, one hundred ten thousand, twenty-one".