2010121121 has 4 divisors (see below), whose sum is σ = 2010297600. Its totient is φ = 2009944644.

The previous prime is 2010121067. The next prime is 2010121147. The reversal of 2010121121 is 1211210102.

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 a de Polignac number, because none of the positive numbers 2^k-2010121121 is a prime.

It is a super-3 number, since 3×2010121121³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010121151) 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, 69881 + ... + 94358.

It is an arithmetic number, because the mean of its divisors is an integer number (502574400).

Almost surely, 2^2010121121 is an apocalyptic number.

It is an amenable number.

2010121121 is a deficient number, since it is larger than the sum of its proper divisors (176479).

2010121121 is a wasteful number, since it uses less digits than its factorization.

2010121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176478.

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

The square root of 2010121121 is about 44834.3743237262. The cubic root of 2010121121 is about 1262.0427770994.

Adding to 2010121121 its reverse (1211210102), we get a palindrome (3221331223).

The spelling of 2010121121 in words is "two billion, ten million, one hundred twenty-one thousand, one hundred twenty-one".