2121110210222 has 16 divisors (see below), whose sum is σ = 3187787992272. Its totient is φ = 1058515718400.

The previous prime is 2121110210207. The next prime is 2121110210227. The reversal of 2121110210222 is 2220120111212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121110210222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121110210227) 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, 2452793 + ... + 3202875.

It is an arithmetic number, because the mean of its divisors is an integer number (199236749517).

Almost surely, 2^{2121110210222} is an apocalyptic number.

2121110210222 is a deficient number, since it is larger than the sum of its proper divisors (1066677782050).

2121110210222 is a wasteful number, since it uses less digits than its factorization.

2121110210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752803.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2121110210222 its reverse (2220120111212), we get a palindrome (4341230321434).

It can be divided in two parts, 2121110 and 210222, that added together give a palindrome (2331332).

The spelling of 2121110210222 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, two hundred ten thousand, two hundred twenty-two".