12021202122222 has 32 divisors (see below), whose sum is σ = 25308806371200. Its totient is φ = 3796017226848.

The previous prime is 12021202122133. The next prime is 12021202122233. The reversal of 12021202122222 is 22222120212021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770104 + ... + 4963412.

It is an arithmetic number, because the mean of its divisors is an integer number (790900199100).

Almost surely, 2^{12021202122222} is an apocalyptic number.

12021202122222 is an abundant number, since it is smaller than the sum of its proper divisors (13287604248978).

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

12021202122222 is a wasteful number, since it uses less digits than its factorization.

12021202122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4218480.

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

Adding to 12021202122222 its reverse (22222120212021), we get a palindrome (34243322334243).

The spelling of 12021202122222 in words is "twelve trillion, twenty-one billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty-two".