12212001122 has 4 divisors (see below), whose sum is σ = 18318001686. Its totient is φ = 6106000560.

The previous prime is 12212001047. The next prime is 12212001149. The reversal of 12212001122 is 22110021221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11453494441 + 758506681 = 107021^2 + 27541^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12212001097 and 12212001106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053000279 + ... + 3053000282.

Almost surely, 2^12212001122 is an apocalyptic number.

12212001122 is a deficient number, since it is larger than the sum of its proper divisors (6106000564).

12212001122 is an equidigital number, since it uses as much as digits as its factorization.

12212001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106000563.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12212001122 its reverse (22110021221), we get a palindrome (34322022343).

The spelling of 12212001122 in words is "twelve billion, two hundred twelve million, one thousand, one hundred twenty-two".