2121042010 has 64 divisors (see below), whose sum is σ = 4206136320. Its totient is φ = 767024640.

The previous prime is 2121041987. The next prime is 2121042013. The reversal of 2121042010 is 102401212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2121042013) 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, 427504 + ... + 432436.

It is an arithmetic number, because the mean of its divisors is an integer number (65720880).

Almost surely, 2^2121042010 is an apocalyptic number.

2121042010 is a deficient number, since it is larger than the sum of its proper divisors (2085094310).

2121042010 is a wasteful number, since it uses less digits than its factorization.

2121042010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2121042010 is about 46054.7718483112. The cubic root of 2121042010 is about 1284.8420947848.

Adding to 2121042010 its reverse (102401212), we get a palindrome (2223443222).

The spelling of 2121042010 in words is "two billion, one hundred twenty-one million, forty-two thousand, ten".