22220212120000 has 140 divisors (see below), whose sum is σ = 55199688101800. Its totient is φ = 8871827328000.

The previous prime is 22220212119983. The next prime is 22220212120019. The reversal of 22220212120000 is 2121202222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21372226 + ... + 22387774.

Almost surely, 2^{22220212120000} is an apocalyptic number.

22220212120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220212120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27599844050900).

22220212120000 is an abundant number, since it is smaller than the sum of its proper divisors (32979475981800).

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

22220212120000 is an equidigital number, since it uses as much as digits as its factorization.

22220212120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016128 (or 1016103 counting only the distinct ones).

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

Adding to 22220212120000 its reverse (2121202222), we get a palindrome (22222333322222).

The spelling of 22220212120000 in words is "twenty-two trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty thousand".