12221120022 has 8 divisors (see below), whose sum is σ = 24442240056. Its totient is φ = 4073706672.

The previous prime is 12221120011. The next prime is 12221120027. The reversal of 12221120022 is 22002112221.

It is a sphenic number, since it is the product of 3 distinct primes.

12221120022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12221119983 and 12221120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221120027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018426663 + ... + 1018426674.

It is an arithmetic number, because the mean of its divisors is an integer number (3055280007).

Almost surely, 2^12221120022 is an apocalyptic number.

12221120022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12221120022 is a wasteful number, since it uses less digits than its factorization.

12221120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036853342.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12221120022 its reverse (22002112221), we get a palindrome (34223232243).

The spelling of 12221120022 in words is "twelve billion, two hundred twenty-one million, one hundred twenty thousand, twenty-two".