20102221212200 has 96 divisors (see below), whose sum is σ = 48619418292000. Its totient is φ = 7720243910400.

The previous prime is 20102221212133. The next prime is 20102221212217. The reversal of 20102221212200 is 221212220102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8643086 + ... + 10719485.

It is an arithmetic number, because the mean of its divisors is an integer number (506452273875).

Almost surely, 2^{20102221212200} is an apocalyptic number.

20102221212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102221212200 is an abundant number, since it is smaller than the sum of its proper divisors (28517197079800).

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

20102221212200 is a wasteful number, since it uses less digits than its factorization.

20102221212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19362795 (or 19362786 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20102221212200 its reverse (221212220102), we get a palindrome (20323433432302).

The spelling of 20102221212200 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, two hundred twelve thousand, two hundred".