22120022232 has 96 divisors (see below), whose sum is σ = 74691002880. Its totient is φ = 5745458880.

The previous prime is 22120022201. The next prime is 22120022233. The reversal of 22120022232 is 23222002122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120022233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1989408 + ... + 2000495.

It is an arithmetic number, because the mean of its divisors is an integer number (778031280).

Almost surely, 2^22120022232 is an apocalyptic number.

22120022232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22120022232 is an abundant number, since it is smaller than the sum of its proper divisors (52570980648).

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

22120022232 is a wasteful number, since it uses less digits than its factorization.

22120022232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989933 (or 3989926 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22120022232 its reverse (23222002122), we get a palindrome (45342024354).

The spelling of 22120022232 in words is "twenty-two billion, one hundred twenty million, twenty-two thousand, two hundred thirty-two".