1222112202222 has 32 divisors (see below), whose sum is σ = 2453710281120. Its totient is φ = 405790248960.

The previous prime is 1222112202221. The next prime is 1222112202229. The reversal of 1222112202222 is 2222022112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222112202221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10401918 + ... + 10518750.

It is an arithmetic number, because the mean of its divisors is an integer number (76678446285).

Almost surely, 2^{1222112202222} is an apocalyptic number.

1222112202222 is an abundant number, since it is smaller than the sum of its proper divisors (1231598078898).

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

1222112202222 is a wasteful number, since it uses less digits than its factorization.

1222112202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123588.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1222112202222 its reverse (2222022112221), we get a palindrome (3444134314443).

Subtracting 1222112202222 from its reverse (2222022112221), we obtain a palindrome (999909909999).

The spelling of 1222112202222 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, two hundred two thousand, two hundred twenty-two".