12200221222122 has 64 divisors (see below), whose sum is σ = 25404062995584. Its totient is φ = 3902647910400.

The previous prime is 12200221222121. The next prime is 12200221222127. The reversal of 12200221222122 is 22122212200221.

It is not an unprimeable number, because it can be changed into a prime (12200221222121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10523178 + ... + 11624874.

It is an arithmetic number, because the mean of its divisors is an integer number (396938484306).

Almost surely, 2^{12200221222122} is an apocalyptic number.

12200221222122 is an abundant number, since it is smaller than the sum of its proper divisors (13203841773462).

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

12200221222122 is a wasteful number, since it uses less digits than its factorization.

12200221222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102423.

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

Adding to 12200221222122 its reverse (22122212200221), we get a palindrome (34322433422343).

The spelling of 12200221222122 in words is "twelve trillion, two hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".