221222302000220 has 12 divisors (see below), whose sum is σ = 464566834200504. Its totient is φ = 88488920800080.

The previous prime is 221222302000181. The next prime is 221222302000241. The reversal of 221222302000220 is 22000203222122.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 11061115100011 = 221222302000220 / (2 + 2 + 1 + 2 + 2 + 2 + 3 + 0 + 2 + 0 + 0 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 221222302000192 and 221222302000201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5530557549986 + ... + 5530557550025.

It is an arithmetic number, because the mean of its divisors is an integer number (38713902850042).

Almost surely, 2^{221222302000220} is an apocalyptic number.

221222302000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221222302000220 is an abundant number, since it is smaller than the sum of its proper divisors (243344532200284).

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

221222302000220 is a wasteful number, since it uses less digits than its factorization.

221222302000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11061115100020 (or 11061115100018 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 221222302000220 its reverse (22000203222122), we get a palindrome (243222505222342).

The spelling of 221222302000220 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, three hundred two million, two hundred twenty", and thus it is an aban number.