2100200221222 has 4 divisors (see below), whose sum is σ = 3150300331836. Its totient is φ = 1050100110610.

The previous prime is 2100200221181. The next prime is 2100200221271. The reversal of 2100200221222 is 2221220020012.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2100200221196 and 2100200221205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525050055304 + ... + 525050055307.

It is an arithmetic number, because the mean of its divisors is an integer number (787575082959).

Almost surely, 2^{2100200221222} is an apocalyptic number.

2100200221222 is a deficient number, since it is larger than the sum of its proper divisors (1050100110614).

2100200221222 is a wasteful number, since it uses less digits than its factorization.

2100200221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050100110613.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2100200221222 its reverse (2221220020012), we get a palindrome (4321420241234).

The spelling of 2100200221222 in words is "two trillion, one hundred billion, two hundred million, two hundred twenty-one thousand, two hundred twenty-two".