12212001322 has 16 divisors (see below), whose sum is σ = 18533853000. Its totient is φ = 6034124800.

The previous prime is 12212001311. The next prime is 12212001341. The reversal of 12212001322 is 22310021221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10732752801 + 1479248521 = 103599^2 + 38461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12212001296 and 12212001305.

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, 329322 + ... + 364522.

Almost surely, 2^12212001322 is an apocalyptic number.

12212001322 is a deficient number, since it is larger than the sum of its proper divisors (6321851678).

12212001322 is a wasteful number, since it uses less digits than its factorization.

12212001322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37241.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12212001322 its reverse (22310021221), we get a palindrome (34522022543).

The spelling of 12212001322 in words is "twelve billion, two hundred twelve million, one thousand, three hundred twenty-two".