2100222212222 has 16 divisors (see below), whose sum is σ = 3156070604544. Its totient is φ = 1048198935000.

The previous prime is 2100222212183. The next prime is 2100222212237. The reversal of 2100222212222 is 2222122220012.

It is a junction number, because it is equal to n+sod(n) for n = 2100222212194 and 2100222212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18731147 + ... + 18842937.

It is an arithmetic number, because the mean of its divisors is an integer number (197254412784).

Almost surely, 2^{2100222212222} is an apocalyptic number.

2100222212222 is a deficient number, since it is larger than the sum of its proper divisors (1055848392322).

2100222212222 is a wasteful number, since it uses less digits than its factorization.

2100222212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128815.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2100222212222 its reverse (2222122220012), we get a palindrome (4322344432234).

The spelling of 2100222212222 in words is "two trillion, one hundred billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-two".