222212211201222 has 48 divisors (see below), whose sum is σ = 491496501881280. Its totient is φ = 66923923025520.

The previous prime is 222212211201187. The next prime is 222212211201241. The reversal of 222212211201222 is 222102112212222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222212211201192 and 222212211201201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 938769472 + ... + 939006147.

It is an arithmetic number, because the mean of its divisors is an integer number (10239510455860).

Almost surely, 2^{222212211201222} is an apocalyptic number.

222212211201222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222212211201222 is an abundant number, since it is smaller than the sum of its proper divisors (269284290680058).

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

222212211201222 is a wasteful number, since it uses less digits than its factorization.

222212211201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877775809 (or 1877775798 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 222212211201222 its reverse (222102112212222), we get a palindrome (444314323413444).

The spelling of 222212211201222 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred eleven million, two hundred one thousand, two hundred twenty-two".