2121222310 has 16 divisors (see below), whose sum is σ = 3841066656. Its totient is φ = 843407488.

The previous prime is 2121222307. The next prime is 2121222319. The reversal of 2121222310 is 132221212.

It is a happy number.

It is a super-2 number, since 2×2121222310² = 8999168176883472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121222319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633427 + ... + 636766.

It is an arithmetic number, because the mean of its divisors is an integer number (240066666).

Almost surely, 2^2121222310 is an apocalyptic number.

2121222310 is a deficient number, since it is larger than the sum of its proper divisors (1719844346).

2121222310 is a wasteful number, since it uses less digits than its factorization.

2121222310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270367.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2121222310 is about 46056.7292586002. The cubic root of 2121222310 is about 1284.8784999204.

Adding to 2121222310 its reverse (132221212), we get a palindrome (2253443522).

The spelling of 2121222310 in words is "two billion, one hundred twenty-one million, two hundred twenty-two thousand, three hundred ten".