2111221200222 has 40 divisors (see below), whose sum is σ = 5008975795296. Its totient is φ = 662343905088.

The previous prime is 2111221200217. The next prime is 2111221200241. The reversal of 2111221200222 is 2220021221112.

It is a happy number.

2111221200222 is a `hidden beast` number, since 21 + 1 + 1 + 221 + 200 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2111221200195 and 2111221200204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 383298118 + ... + 383303625.

Almost surely, 2^{2111221200222} is an apocalyptic number.

2111221200222 is an abundant number, since it is smaller than the sum of its proper divisors (2897754595074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111221200222 is a wasteful number, since it uses less digits than its factorization.

2111221200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766601774 (or 766601765 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2111221200222 its reverse (2220021221112), we get a palindrome (4331242421334).

It can be divided in two parts, 211122 and 1200222, that added together give a square (1411344 = 1188²).

The spelling of 2111221200222 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred thousand, two hundred twenty-two".