12202111122222 has 128 divisors (see below), whose sum is σ = 28347029028864. Its totient is φ = 3429728039808.

The previous prime is 12202111122209. The next prime is 12202111122251. The reversal of 12202111122222 is 22222111120221.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1507732408 + ... + 1507740500.

It is an arithmetic number, because the mean of its divisors is an integer number (221461164288).

Almost surely, 2^{12202111122222} is an apocalyptic number.

12202111122222 is an abundant number, since it is smaller than the sum of its proper divisors (16144917906642).

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

12202111122222 is a wasteful number, since it uses less digits than its factorization.

12202111122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10462.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12202111122222 its reverse (22222111120221), we get a palindrome (34424222242443).

The spelling of 12202111122222 in words is "twelve trillion, two hundred two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twenty-two".