22220188387000 has 64 divisors (see below), whose sum is σ = 52006435884000. Its totient is φ = 8886161670400.

The previous prime is 22220188386967. The next prime is 22220188387009. The reversal of 22220188387000 is 78388102222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220188387009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2259219 + ... + 7038781.

Almost surely, 2^{22220188387000} is an apocalyptic number.

22220188387000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220188387000 is an abundant number, since it is smaller than the sum of its proper divisors (29786247497000).

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

22220188387000 is a wasteful number, since it uses less digits than its factorization.

22220188387000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784233 (or 4784219 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 22220188387000 in words is "twenty-two trillion, two hundred twenty billion, one hundred eighty-eight million, three hundred eighty-seven thousand".