2220021021100 has 18 divisors (see below), whose sum is σ = 4817445616004. Its totient is φ = 888008408400.

The previous prime is 2220021021061. The next prime is 2220021021131. The reversal of 2220021021100 is 11201200222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11100105006 + ... + 11100105205.

Almost surely, 2^{2220021021100} is an apocalyptic number.

2220021021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220021021100 is an abundant number, since it is smaller than the sum of its proper divisors (2597424594904).

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

2220021021100 is a wasteful number, since it uses less digits than its factorization.

2220021021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22200210225 (or 22200210218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2220021021100 its reverse (11201200222), we get a palindrome (2231222221322).

The spelling of 2220021021100 in words is "two trillion, two hundred twenty billion, twenty-one million, twenty-one thousand, one hundred".