10121312002021 has 16 divisors (see below), whose sum is σ = 11156476032000. Its totient is φ = 9105415624000.

The previous prime is 10121312001991. The next prime is 10121312002033. The reversal of 10121312002021 is 12020021312101.

It is a cyclic number.

It is not a de Polignac number, because 10121312002021 - 2⁹ = 10121312001509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121312001986 and 10121312002004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121312002421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171781 + ... + 4502458.

It is an arithmetic number, because the mean of its divisors is an integer number (697279752000).

Almost surely, 2^{10121312002021} is an apocalyptic number.

10121312002021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10121312002021 is a deficient number, since it is larger than the sum of its proper divisors (1035164029979).

10121312002021 is a wasteful number, since it uses less digits than its factorization.

10121312002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676300.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10121312002021 its reverse (12020021312101), we get a palindrome (22141333314122).

The spelling of 10121312002021 in words is "ten trillion, one hundred twenty-one billion, three hundred twelve million, two thousand, twenty-one".