22120221112 has 32 divisors (see below), whose sum is σ = 47213124480. Its totient is φ = 9617486560.

The previous prime is 22120221107. The next prime is 22120221119. The reversal of 22120221112 is 21112202122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120221119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5462458 + ... + 5466505.

It is an arithmetic number, because the mean of its divisors is an integer number (1475410140).

Almost surely, 2^22120221112 is an apocalyptic number.

22120221112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22120221112 is an abundant number, since it is smaller than the sum of its proper divisors (25092903368).

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

22120221112 is a wasteful number, since it uses less digits than its factorization.

22120221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10929003 (or 10928999 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22120221112 its reverse (21112202122), we get a palindrome (43232423234).

The spelling of 22120221112 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, one hundred twelve".