2010010021121 has 4 divisors (see below), whose sum is σ = 2021115049044. Its totient is φ = 1998904993200.

The previous prime is 2010010021099. The next prime is 2010010021139. The reversal of 2010010021121 is 1211200100102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80511225025 + 1929498796096 = 283745^2 + 1389064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2010010021121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010010021141) 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, 5552513690 + ... + 5552514051.

It is an arithmetic number, because the mean of its divisors is an integer number (505278762261).

Almost surely, 2^{2010010021121} is an apocalyptic number.

It is an amenable number.

2010010021121 is a deficient number, since it is larger than the sum of its proper divisors (11105027923).

2010010021121 is a wasteful number, since it uses less digits than its factorization.

2010010021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105027922.

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

Adding to 2010010021121 its reverse (1211200100102), we get a palindrome (3221210121223).

The spelling of 2010010021121 in words is "two trillion, ten billion, ten million, twenty-one thousand, one hundred twenty-one".