22120312000 has 56 divisors (see below), whose sum is σ = 54780972480. Its totient is φ = 8848121600.

The previous prime is 22120311973. The next prime is 22120312001. The reversal of 22120312000 is 21302122.

It is not an unprimeable number, because it can be changed into a prime (22120312001) 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, 1374520 + ... + 1390519.

Almost surely, 2^22120312000 is an apocalyptic number.

22120312000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120312000 is an abundant number, since it is smaller than the sum of its proper divisors (32660660480).

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

22120312000 is an equidigital number, since it uses as much as digits as its factorization.

22120312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765066 (or 2765046 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22120312000 its reverse (21302122), we get a palindrome (22141614122).

The spelling of 22120312000 in words is "twenty-two billion, one hundred twenty million, three hundred twelve thousand".