10020120010121 has 32 divisors (see below), whose sum is σ = 11327754227328. Its totient is φ = 8803087050240.

The previous prime is 10020120010081. The next prime is 10020120010127. The reversal of 10020120010121 is 12101002102001.

It is a cyclic number.

It is not a de Polignac number, because 10020120010121 - 2³⁴ = 10002940140937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020120010127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2275445 + ... + 5021741.

It is an arithmetic number, because the mean of its divisors is an integer number (353992319604).

Almost surely, 2^{10020120010121} is an apocalyptic number.

It is an amenable number.

10020120010121 is a deficient number, since it is larger than the sum of its proper divisors (1307634217207).

10020120010121 is a wasteful number, since it uses less digits than its factorization.

10020120010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746521.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10020120010121 its reverse (12101002102001), we get a palindrome (22121122112122).

The spelling of 10020120010121 in words is "ten trillion, twenty billion, one hundred twenty million, ten thousand, one hundred twenty-one".