2100212222 has 4 divisors (see below), whose sum is σ = 3150318336. Its totient is φ = 1050106110.

The previous prime is 2100212209. The next prime is 2100212227. The reversal of 2100212222 is 2222120012.

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 = 2100212197 and 2100212206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100212227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525053054 + ... + 525053057.

It is an arithmetic number, because the mean of its divisors is an integer number (787579584).

Almost surely, 2^2100212222 is an apocalyptic number.

2100212222 is a deficient number, since it is larger than the sum of its proper divisors (1050106114).

2100212222 is a wasteful number, since it uses less digits than its factorization.

2100212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050106113.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2100212222 is about 45828.0724229156. The cubic root of 2100212222 is about 1280.6223011648.

Adding to 2100212222 its reverse (2222120012), we get a palindrome (4322332234).

The spelling of 2100212222 in words is "two billion, one hundred million, two hundred twelve thousand, two hundred twenty-two".