10120121210021 has 8 divisors (see below), whose sum is σ = 10501324599744. Its totient is φ = 9745547444640.

The previous prime is 10120121209987. The next prime is 10120121210029. The reversal of 10120121210021 is 12001212102101.

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 10120121210021 - 2²² = 10120117015717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120121209978 and 10120121210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120121210029) 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, 1657402976 + ... + 1657409081.

It is an arithmetic number, because the mean of its divisors is an integer number (1312665574968).

Almost surely, 2^{10120121210021} is an apocalyptic number.

It is an amenable number.

10120121210021 is a deficient number, since it is larger than the sum of its proper divisors (381203389723).

10120121210021 is an equidigital number, since it uses as much as digits as its factorization.

10120121210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314812171.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10120121210021 its reverse (12001212102101), we get a palindrome (22121333312122).

The spelling of 10120121210021 in words is "ten trillion, one hundred twenty billion, one hundred twenty-one million, two hundred ten thousand, twenty-one".