12021111220222 has 16 divisors (see below), whose sum is σ = 19429440850512. Its totient is φ = 5545141542720.

The previous prime is 12021111220219. The next prime is 12021111220229. The reversal of 12021111220222 is 22202211112021.

It is a super-2 number, since 2×12021111220222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12021111220222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021111220229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127603503 + ... + 127697674.

It is an arithmetic number, because the mean of its divisors is an integer number (1214340053157).

Almost surely, 2^{12021111220222} is an apocalyptic number.

12021111220222 is a deficient number, since it is larger than the sum of its proper divisors (7408329630290).

12021111220222 is a wasteful number, since it uses less digits than its factorization.

12021111220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255303003.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12021111220222 its reverse (22202211112021), we get a palindrome (34223322332243).

The spelling of 12021111220222 in words is "twelve trillion, twenty-one billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty-two".