10121200012021 has 8 divisors (see below), whose sum is σ = 11584171532160. Its totient is φ = 8662499942928.

The previous prime is 10121200011971. The next prime is 10121200012073. The reversal of 10121200012021 is 12021000212101.

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

It is a cyclic number.

It is not a de Polignac number, because 10121200012021 - 2⁴¹ = 7922176756469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121200011992 and 10121200012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121200010021) 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, 1067857681 + ... + 1067867158.

It is an arithmetic number, because the mean of its divisors is an integer number (1448021441520).

Almost surely, 2^{10121200012021} is an apocalyptic number.

It is an amenable number.

10121200012021 is a deficient number, since it is larger than the sum of its proper divisors (1462971520139).

10121200012021 is an equidigital number, since it uses as much as digits as its factorization.

10121200012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135725523.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10121200012021 its reverse (12021000212101), we get a palindrome (22142200224122).

The spelling of 10121200012021 in words is "ten trillion, one hundred twenty-one billion, two hundred million, twelve thousand, twenty-one".