2121110111222 has 8 divisors (see below), whose sum is σ = 3181731338856. Its totient is φ = 1060532998272.

The previous prime is 2121110111201. The next prime is 2121110111243. The reversal of 2121110111222 is 2221110111212.

It is an interprime number because it is at equal distance from previous prime (2121110111201) and next prime (2121110111243).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2121110111222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10908203 + ... + 11100950.

It is an arithmetic number, because the mean of its divisors is an integer number (397716417357).

Almost surely, 2^{2121110111222} is an apocalyptic number.

2121110111222 is a deficient number, since it is larger than the sum of its proper divisors (1060621227634).

2121110111222 is a wasteful number, since it uses less digits than its factorization.

2121110111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22057342.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2121110111222 its reverse (2221110111212), we get a palindrome (4342220222434).

The spelling of 2121110111222 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, one hundred eleven thousand, two hundred twenty-two".