12022221220112 has 40 divisors (see below), whose sum is σ = 24726635083800. Its totient is φ = 5642972076032.

The previous prime is 12022221220109. The next prime is 12022221220127. The reversal of 12022221220112 is 21102212222021.

It can be written as a sum of positive squares in 4 ways, for example, as 3397990836496 + 8624230383616 = 1843364^2 + 2936704^2 .

It is a super-2 number, since 2×12022221220112² (a number of 27 digits) contains 22 as substring.

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, 56705687 + ... + 56917302.

It is an arithmetic number, because the mean of its divisors is an integer number (618165877095).

Almost surely, 2^{12022221220112} is an apocalyptic number.

It is an amenable number.

12022221220112 is an abundant number, since it is smaller than the sum of its proper divisors (12704413863688).

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

12022221220112 is a wasteful number, since it uses less digits than its factorization.

12022221220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113623403 (or 113623397 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12022221220112 its reverse (21102212222021), we get a palindrome (33124433442133).

The spelling of 12022221220112 in words is "twelve trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twelve".