2112420042100 has 36 divisors (see below), whose sum is σ = 4587305081184. Its totient is φ = 844349843680.

The previous prime is 2112420042097. The next prime is 2112420042133. The reversal of 2112420042100 is 12400242112.

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, 7589782 + ... + 7863181.

It is an arithmetic number, because the mean of its divisors is an integer number (127425141144).

Almost surely, 2^{2112420042100} is an apocalyptic number.

2112420042100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112420042100 is an abundant number, since it is smaller than the sum of its proper divisors (2474885039084).

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

2112420042100 is a wasteful number, since it uses less digits than its factorization.

2112420042100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15454344 (or 15454337 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2112420042100 its reverse (12400242112), we get a palindrome (2124820284212).

The spelling of 2112420042100 in words is "two trillion, one hundred twelve billion, four hundred twenty million, forty-two thousand, one hundred".