12212032122 has 32 divisors (see below), whose sum is σ = 27799752960. Its totient is φ = 3971391840.

The previous prime is 12212032099. The next prime is 12212032123. The reversal of 12212032122 is 22123021221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12212032095 and 12212032104.

It is not an unprimeable number, because it can be changed into a prime (12212032123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2755698 + ... + 2760125.

It is an arithmetic number, because the mean of its divisors is an integer number (868742280).

Almost surely, 2^12212032122 is an apocalyptic number.

12212032122 is an abundant number, since it is smaller than the sum of its proper divisors (15587720838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212032122 is a wasteful number, since it uses less digits than its factorization.

12212032122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515875 (or 5515869 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12212032122 its reverse (22123021221), we get a palindrome (34335053343).

The spelling of 12212032122 in words is "twelve billion, two hundred twelve million, thirty-two thousand, one hundred twenty-two".