22120212220000 has 120 divisors (see below), whose sum is σ = 55684601329896. Its totient is φ = 8642315136000.

The previous prime is 22120212219997. The next prime is 22120212220003. The reversal of 22120212220000 is 2221202122.

It is an interprime number because it is at equal distance from previous prime (22120212219997) and next prime (22120212220003).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120212220003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12000589 + ... + 13720588.

Almost surely, 2^{22120212220000} is an apocalyptic number.

22120212220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120212220000 is an abundant number, since it is smaller than the sum of its proper divisors (33564389109896).

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

22120212220000 is an equidigital number, since it uses as much as digits as its factorization.

22120212220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25721250 (or 25721227 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22120212220000 its reverse (2221202122), we get a palindrome (22122433422122).

It can be divided in two parts, 221202122 and 20000, that added together give a palindrome (221222122).

The spelling of 22120212220000 in words is "twenty-two trillion, one hundred twenty billion, two hundred twelve million, two hundred twenty thousand".