20102202112220 has 48 divisors (see below), whose sum is σ = 43682576011200. Its totient is φ = 7761426892800.

The previous prime is 20102202112217. The next prime is 20102202112241. The reversal of 20102202112220 is 2221120220102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2804981 + ... + 6933420.

It is an arithmetic number, because the mean of its divisors is an integer number (910053666900).

Almost surely, 2^{20102202112220} is an apocalyptic number.

20102202112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102202112220 is an abundant number, since it is smaller than the sum of its proper divisors (23580373898980).

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

20102202112220 is a wasteful number, since it uses less digits than its factorization.

20102202112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741998 (or 9741996 counting only the distinct ones).

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

Adding to 20102202112220 its reverse (2221120220102), we get a palindrome (22323322332322).

The spelling of 20102202112220 in words is "twenty trillion, one hundred two billion, two hundred two million, one hundred twelve thousand, two hundred twenty".