2102201112220 has 24 divisors (see below), whose sum is σ = 4815951639408. Its totient is φ = 764436768000.

The previous prime is 2102201112217. The next prime is 2102201112223. The reversal of 2102201112220 is 222111022012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2102201112217) and next prime (2102201112223).

It is a junction number, because it is equal to n+sod(n) for n = 2102201112194 and 2102201112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102201112223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4777729581 + ... + 4777730020.

It is an arithmetic number, because the mean of its divisors is an integer number (200664651642).

Almost surely, 2^{2102201112220} is an apocalyptic number.

2102201112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102201112220 is an abundant number, since it is smaller than the sum of its proper divisors (2713750527188).

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

2102201112220 is a wasteful number, since it uses less digits than its factorization.

2102201112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9555459621 (or 9555459619 counting only the distinct ones).

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

Adding to 2102201112220 its reverse (222111022012), we get a palindrome (2324312134232).

The spelling of 2102201112220 in words is "two trillion, one hundred two billion, two hundred one million, one hundred twelve thousand, two hundred twenty".