12022221022 has 16 divisors (see below), whose sum is σ = 20958837120. Its totient is φ = 5065051608.

The previous prime is 12022221019. The next prime is 12022221053. The reversal of 12022221022 is 22012222021.

It is a junction number, because it is equal to n+sod(n) for n = 12022220987 and 12022221005.

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, 7276548 + ... + 7278199.

It is an arithmetic number, because the mean of its divisors is an integer number (1309927320).

Almost surely, 2^12022221022 is an apocalyptic number.

12022221022 is a deficient number, since it is larger than the sum of its proper divisors (8936616098).

12022221022 is a wasteful number, since it uses less digits than its factorization.

12022221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14554815.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12022221022 its reverse (22012222021), we get a palindrome (34034443043).

Subtracting 12022221022 from its reverse (22012222021), we obtain a palindrome (9990000999).

The spelling of 12022221022 in words is "twelve billion, twenty-two million, two hundred twenty-one thousand, twenty-two".