222012110211220 has 192 divisors, whose sum is σ = 545858256384000. Its totient is φ = 74285046190080.

The previous prime is 222012110211217. The next prime is 222012110211251. The reversal of 222012110211220 is 22112011210222.

222012110211220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321075460 + ... + 321766180.

It is an arithmetic number, because the mean of its divisors is an integer number (2843011752000).

Almost surely, 2^{222012110211220} is an apocalyptic number.

222012110211220 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 222012110211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272929128192000).

222012110211220 is an abundant number, since it is smaller than the sum of its proper divisors (323846146172780).

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

222012110211220 is a wasteful number, since it uses less digits than its factorization.

222012110211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691158 (or 691156 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222012110211220 its reverse (22112011210222), we get a palindrome (244124121421442).

The spelling of 222012110211220 in words is "two hundred twenty-two trillion, twelve billion, one hundred ten million, two hundred eleven thousand, two hundred twenty".