22220533240000 has 70 divisors (see below), whose sum is σ = 55099700861084. Its totient is φ = 8888213280000.

The previous prime is 22220533239997. The next prime is 22220533240019. The reversal of 22220533240000 is 4233502222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 277716666 + ... + 277796665.

Almost surely, 2^{22220533240000} is an apocalyptic number.

22220533240000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220533240000 is an abundant number, since it is smaller than the sum of its proper divisors (32879167621084).

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

22220533240000 is an frugal number, since it uses more digits than its factorization.

22220533240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555513363 (or 555513338 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 22220533240000 its reverse (4233502222), we get a palindrome (22224766742222).

The spelling of 22220533240000 in words is "twenty-two trillion, two hundred twenty billion, five hundred thirty-three million, two hundred forty thousand".