12221021212022 has 16 divisors (see below), whose sum is σ = 22052970608640. Its totient is φ = 4961918386728.

The previous prime is 12221021212007. The next prime is 12221021212063. The reversal of 12221021212022 is 22021212012221.

It is a junction number, because it is equal to n+sod(n) for n = 12221021211985 and 12221021212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22971844118 + ... + 22971844649.

It is an arithmetic number, because the mean of its divisors is an integer number (1378310663040).

Almost surely, 2^{12221021212022} is an apocalyptic number.

12221021212022 is a deficient number, since it is larger than the sum of its proper divisors (9831949396618).

12221021212022 is a wasteful number, since it uses less digits than its factorization.

12221021212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45943688795.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12221021212022 its reverse (22021212012221), we get a palindrome (34242233224243).

The spelling of 12221021212022 in words is "twelve trillion, two hundred twenty-one billion, twenty-one million, two hundred twelve thousand, twenty-two".