2121010222 has 4 divisors (see below), whose sum is σ = 3181515336. Its totient is φ = 1060505110.

The previous prime is 2121010211. The next prime is 2121010247. The reversal of 2121010222 is 2220101212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530252554 + ... + 530252557.

It is an arithmetic number, because the mean of its divisors is an integer number (795378834).

Almost surely, 2^2121010222 is an apocalyptic number.

2121010222 is a deficient number, since it is larger than the sum of its proper divisors (1060505114).

2121010222 is a wasteful number, since it uses less digits than its factorization.

2121010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060505113.

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

The square root of 2121010222 is about 46054.4267361999. The cubic root of 2121010222 is about 1284.8356761213.

Adding to 2121010222 its reverse (2220101212), we get a palindrome (4341111434).

The spelling of 2121010222 in words is "two billion, one hundred twenty-one million, ten thousand, two hundred twenty-two".