10020101010121 has 4 divisors (see below), whose sum is σ = 10020150030352. Its totient is φ = 10020051989892.

The previous prime is 10020101010107. The next prime is 10020101010173. The reversal of 10020101010121 is 12101010102001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10020101010121 - 2⁷ = 10020101009993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020101010098 and 10020101010107.

It is not an unprimeable number, because it can be changed into a prime (10020101013121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24202215 + ... + 24612748.

It is an arithmetic number, because the mean of its divisors is an integer number (2505037507588).

Almost surely, 2^{10020101010121} is an apocalyptic number.

It is an amenable number.

10020101010121 is a deficient number, since it is larger than the sum of its proper divisors (49020231).

10020101010121 is an equidigital number, since it uses as much as digits as its factorization.

10020101010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49020230.

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

Adding to 10020101010121 its reverse (12101010102001), we get a palindrome (22121111112122).

The spelling of 10020101010121 in words is "ten trillion, twenty billion, one hundred one million, ten thousand, one hundred twenty-one".