222120221202 has 96 divisors (see below), whose sum is σ = 553929891840. Its totient is φ = 63618156000.

The previous prime is 222120221189. The next prime is 222120221209. The reversal of 222120221202 is 202122021222.

222120221202 is a `hidden beast` number, since 2 + 221 + 20 + 221 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (222120221209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1552927 + ... + 1689917.

It is an arithmetic number, because the mean of its divisors is an integer number (5770103040).

Almost surely, 2^222120221202 is an apocalyptic number.

222120221202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222120221202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276964945920).

222120221202 is an abundant number, since it is smaller than the sum of its proper divisors (331809670638).

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

222120221202 is a wasteful number, since it uses less digits than its factorization.

222120221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137460 (or 137457 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222120221202 its reverse (202122021222), we get a palindrome (424242242424).

The spelling of 222120221202 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, two hundred two".