2212121210 has 64 divisors (see below), whose sum is σ = 4370889600. Its totient is φ = 801176832.

The previous prime is 2212121203. The next prime is 2212121237. The reversal of 2212121210 is 121212122.

2212121210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1515461 + ... + 1516919.

It is an arithmetic number, because the mean of its divisors is an integer number (68295150).

Almost surely, 2^2212121210 is an apocalyptic number.

2212121210 is a deficient number, since it is larger than the sum of its proper divisors (2158768390).

2212121210 is a wasteful number, since it uses less digits than its factorization.

2212121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2212121210 is about 47033.1926409424. The cubic root of 2212121210 is about 1302.9756707392.

Adding to 2212121210 its reverse (121212122), we get a palindrome (2333333332).

It can be divided in two parts, 2 and 212121210, that added together give a palindrome (212121212).

The spelling of 2212121210 in words is "two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred ten".