12022201312 has 48 divisors (see below), whose sum is σ = 25829846784. Its totient is φ = 5462640000.

The previous prime is 12022201273. The next prime is 12022201313. The reversal of 12022201312 is 21310222021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022201313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421737 + ... + 1430167.

It is an arithmetic number, because the mean of its divisors is an integer number (538121808).

Almost surely, 2^12022201312 is an apocalyptic number.

It is an amenable number.

12022201312 is an abundant number, since it is smaller than the sum of its proper divisors (13807645472).

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

12022201312 is a wasteful number, since it uses less digits than its factorization.

12022201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503 (or 12495 counting only the distinct ones).

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

Adding to 12022201312 its reverse (21310222021), we get a palindrome (33332423333).

The spelling of 12022201312 in words is "twelve billion, twenty-two million, two hundred one thousand, three hundred twelve".