20002220000 has 120 divisors (see below), whose sum is σ = 56238635376. Its totient is φ = 6857856000.

The previous prime is 20002219969. The next prime is 20002220057. The reversal of 20002220000 is 2220002.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20002220000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68564 + ... + 211436.

Almost surely, 2^20002220000 is an apocalyptic number.

20002220000 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 20002220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28119317688).

20002220000 is an abundant number, since it is smaller than the sum of its proper divisors (36236415376).

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

20002220000 is an equidigital number, since it uses as much as digits as its factorization.

20002220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142910 (or 142887 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 20002220000 its reverse (2220002), we get a palindrome (20004440002).

It can be divided in two parts, 200022 and 20000, that added together give a palindrome (220022).

The spelling of 20002220000 in words is "twenty billion, two million, two hundred twenty thousand".