2101112202220 has 24 divisors (see below), whose sum is σ = 4412709194544. Its totient is φ = 840373724736.

The previous prime is 2101112202209. The next prime is 2101112202311. The reversal of 2101112202220 is 222022111012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101112202194 and 2101112202203.

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, 4204807 + ... + 4677886.

It is an arithmetic number, because the mean of its divisors is an integer number (183862883106).

Almost surely, 2^{2101112202220} is an apocalyptic number.

2101112202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101112202220 is an abundant number, since it is smaller than the sum of its proper divisors (2311596992324).

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

2101112202220 is a wasteful number, since it uses less digits than its factorization.

2101112202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8894529 (or 8894527 counting only the distinct ones).

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

Adding to 2101112202220 its reverse (222022111012), we get a palindrome (2323134313232).

The spelling of 2101112202220 in words is "two trillion, one hundred one billion, one hundred twelve million, two hundred two thousand, two hundred twenty".