2100220212112 has 40 divisors (see below), whose sum is σ = 4440303918432. Its totient is φ = 954387033600.

The previous prime is 2100220212109. The next prime is 2100220212127. The reversal of 2100220212112 is 2112120220012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963214 + ... + 2264557.

Almost surely, 2^{2100220212112} is an apocalyptic number.

2100220212112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2100220212112 is an abundant number, since it is smaller than the sum of its proper divisors (2340083706320).

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

2100220212112 is a wasteful number, since it uses less digits than its factorization.

2100220212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231487 (or 3231481 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2100220212112 its reverse (2112120220012), we get a palindrome (4212340432124).

The spelling of 2100220212112 in words is "two trillion, one hundred billion, two hundred twenty million, two hundred twelve thousand, one hundred twelve".