2100222012100 has 72 divisors (see below), whose sum is σ = 4862405848608. Its totient is φ = 784636070400.

The previous prime is 2100222012079. The next prime is 2100222012227. The reversal of 2100222012100 is 12102220012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4492662 + ... + 4938061.

It is an arithmetic number, because the mean of its divisors is an integer number (67533414564).

Almost surely, 2^{2100222012100} is an apocalyptic number.

2100222012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100222012100 is an abundant number, since it is smaller than the sum of its proper divisors (2762183836508).

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

2100222012100 is a wasteful number, since it uses less digits than its factorization.

2100222012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9430885 (or 9430878 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2100222012100 its reverse (12102220012), we get a palindrome (2112324232112).

The spelling of 2100222012100 in words is "two trillion, one hundred billion, two hundred twenty-two million, twelve thousand, one hundred".