2121310232222 has 8 divisors (see below), whose sum is σ = 3181972193400. Its totient is φ = 1060652834424.

The previous prime is 2121310232189. The next prime is 2121310232227. The reversal of 2121310232222 is 2222320131212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121310232227) 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, 484304 + ... + 2115932.

It is an arithmetic number, because the mean of its divisors is an integer number (397746524175).

Almost surely, 2^{2121310232222} is an apocalyptic number.

2121310232222 is a deficient number, since it is larger than the sum of its proper divisors (1060661961178).

2121310232222 is a wasteful number, since it uses less digits than its factorization.

2121310232222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281690.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2121310232222 its reverse (2222320131212), we get a palindrome (4343630363434).

It can be divided in two parts, 2121310 and 232222, that added together give a palindrome (2353532).

The spelling of 2121310232222 in words is "two trillion, one hundred twenty-one billion, three hundred ten million, two hundred thirty-two thousand, two hundred twenty-two".