222121002210220 has 12 divisors (see below), whose sum is σ = 466454104641504. Its totient is φ = 88848400884080.

The previous prime is 222121002210127. The next prime is 222121002210221. The reversal of 222121002210220 is 22012200121222.

It is not an unprimeable number, because it can be changed into a prime (222121002210221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553025055236 + ... + 5553025055275.

It is an arithmetic number, because the mean of its divisors is an integer number (38871175386792).

Almost surely, 2^{222121002210220} is an apocalyptic number.

222121002210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222121002210220 is an abundant number, since it is smaller than the sum of its proper divisors (244333102431284).

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

222121002210220 is a wasteful number, since it uses less digits than its factorization.

222121002210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106050110520 (or 11106050110518 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222121002210220 its reverse (22012200121222), we get a palindrome (244133202331442).

The spelling of 222121002210220 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two million, two hundred ten thousand, two hundred twenty".