2102220112100 has 36 divisors (see below), whose sum is σ = 4562131182000. Its totient is φ = 840830249760.

The previous prime is 2102220112099. The next prime is 2102220112121. The reversal of 2102220112100 is 12110222012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 754811 + ... + 2184989.

Almost surely, 2^{2102220112100} is an apocalyptic number.

2102220112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102220112100 is an abundant number, since it is smaller than the sum of its proper divisors (2459911069900).

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

2102220112100 is a wasteful number, since it uses less digits than its factorization.

2102220112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444892 (or 1444885 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2102220112100 its reverse (12110222012), we get a palindrome (2114330334112).

The spelling of 2102220112100 in words is "two trillion, one hundred two billion, two hundred twenty million, one hundred twelve thousand, one hundred".