12212022221222 has 8 divisors (see below), whose sum is σ = 18707778722016. Its totient is φ = 5976095980552.

The previous prime is 12212022221221. The next prime is 12212022221281. The reversal of 12212022221222 is 22212222021221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212022221221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64957564913 + ... + 64957565100.

It is an arithmetic number, because the mean of its divisors is an integer number (2338472340252).

Almost surely, 2^{12212022221222} is an apocalyptic number.

12212022221222 is a deficient number, since it is larger than the sum of its proper divisors (6495756500794).

12212022221222 is a wasteful number, since it uses less digits than its factorization.

12212022221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129915130062.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 12212022221222 its reverse (22212222021221), we get a palindrome (34424244242443).

The spelling of 12212022221222 in words is "twelve trillion, two hundred twelve billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty-two".