222020344100 has 36 divisors (see below), whose sum is σ = 488569854528. Its totient is φ = 87557316000.

The previous prime is 222020344099. The next prime is 222020344103. The reversal of 222020344100 is 1443020222.

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

It is not an unprimeable number, because it can be changed into a prime (222020344103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15628136 + ... + 15642335.

It is an arithmetic number, because the mean of its divisors is an integer number (13571384848).

Almost surely, 2^222020344100 is an apocalyptic number.

222020344100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222020344100 is an abundant number, since it is smaller than the sum of its proper divisors (266549510428).

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

222020344100 is a wasteful number, since it uses less digits than its factorization.

222020344100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31270556 (or 31270549 counting only the distinct ones).

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

Adding to 222020344100 its reverse (1443020222), we get a palindrome (223463364322).

The spelling of 222020344100 in words is "two hundred twenty-two billion, twenty million, three hundred forty-four thousand, one hundred".