2212222100 has 36 divisors (see below), whose sum is σ = 5236935648. Its totient is φ = 804444000.

The previous prime is 2212222097. The next prime is 2212222123. The reversal of 2212222100 is 12222122.

2212222100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1004456 + ... + 1006655.

Almost surely, 2^2212222100 is an apocalyptic number.

2212222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212222100 is an abundant number, since it is smaller than the sum of its proper divisors (3024713548).

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

2212222100 is a wasteful number, since it uses less digits than its factorization.

2212222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011136 (or 2011129 counting only the distinct ones).

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

The square root of 2212222100 is about 47034.2651691296. The cubic root of 2212222100 is about 1302.9954790596.

Adding to 2212222100 its reverse (12222122), we get a palindrome (2224444222).

It can be divided in two parts, 221222 and 2100, that added together give a palindrome (223322).

The spelling of 2212222100 in words is "two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred".