2204200402220 has 96 divisors (see below), whose sum is σ = 4762766131200. Its totient is φ = 856362585600.

The previous prime is 2204200402171. The next prime is 2204200402249. The reversal of 2204200402220 is 222040024022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2204200402192 and 2204200402201.

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, 390882161 + ... + 390887799.

It is an arithmetic number, because the mean of its divisors is an integer number (49612147200).

Almost surely, 2^{2204200402220} is an apocalyptic number.

2204200402220 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 2204200402220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2381383065600).

2204200402220 is an abundant number, since it is smaller than the sum of its proper divisors (2558565728980).

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

2204200402220 is a wasteful number, since it uses less digits than its factorization.

2204200402220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719 (or 7717 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 2204200402220 its reverse (222040024022), we get a palindrome (2426240426242).

The spelling of 2204200402220 in words is "two trillion, two hundred four billion, two hundred million, four hundred two thousand, two hundred twenty".