10012100011021 has 6 divisors (see below), whose sum is σ = 10566786992622. Its totient is φ = 9485147378520.

The previous prime is 10012100011019. The next prime is 10012100011027. The reversal of 10012100011021 is 12011000121001.

It can be written as a sum of positive squares in only one way, i.e., 9616728177225 + 395371833796 = 3101085^2 + 628786^2 .

It is not a de Polignac number, because 10012100011021 - 2¹ = 10012100011019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012100010989 and 10012100011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012100011027) 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, 13867174170 + ... + 13867174891.

It is an arithmetic number, because the mean of its divisors is an integer number (1761131165437).

Almost surely, 2^{10012100011021} is an apocalyptic number.

It is an amenable number.

10012100011021 is a deficient number, since it is larger than the sum of its proper divisors (554686981601).

10012100011021 is an equidigital number, since it uses as much as digits as its factorization.

10012100011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27734349099 (or 27734349080 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10012100011021 its reverse (12011000121001), we get a palindrome (22023100132022).

The spelling of 10012100011021 in words is "ten trillion, twelve billion, one hundred million, eleven thousand, twenty-one".