20102222020200 has 48 divisors (see below), whose sum is σ = 62316888264480. Its totient is φ = 5360592538560.

The previous prime is 20102222020193. The next prime is 20102222020201. The reversal of 20102222020200 is 202022220102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20102222020200.

It is not an unprimeable number, because it can be changed into a prime (20102222020201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16751851084 + ... + 16751852283.

It is an arithmetic number, because the mean of its divisors is an integer number (1298268505510).

Almost surely, 2^{20102222020200} is an apocalyptic number.

20102222020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102222020200 is an abundant number, since it is smaller than the sum of its proper divisors (42214666244280).

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

20102222020200 is a wasteful number, since it uses less digits than its factorization.

20102222020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33503703386 (or 33503703377 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20102222020200 its reverse (202022220102), we get a palindrome (20304244240302).

The spelling of 20102222020200 in words is "twenty trillion, one hundred two billion, two hundred twenty-two million, twenty thousand, two hundred".