202220001002220 has 96 divisors (see below), whose sum is σ = 570171224952000. Its totient is φ = 53548842753024.

The previous prime is 202220001002171. The next prime is 202220001002233. The reversal of 202220001002220 is 22200100022202.

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 202220001002220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29796546 + ... + 35948214.

It is an arithmetic number, because the mean of its divisors is an integer number (5939283593250).

Almost surely, 2^{202220001002220} is an apocalyptic number.

202220001002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202220001002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285085612476000).

202220001002220 is an abundant number, since it is smaller than the sum of its proper divisors (367951223949780).

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

202220001002220 is a wasteful number, since it uses less digits than its factorization.

202220001002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155507 (or 6155505 counting only the distinct ones).

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

Adding to 202220001002220 its reverse (22200100022202), we get a palindrome (224420101024422).

The spelling of 202220001002220 in words is "two hundred two trillion, two hundred twenty billion, one million, two thousand, two hundred twenty".