22000203240 has 64 divisors (see below), whose sum is σ = 66068516160. Its totient is φ = 5860684800.

The previous prime is 22000203233. The next prime is 22000203289. The reversal of 22000203240 is 4230200022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23415 + ... + 211065.

It is an arithmetic number, because the mean of its divisors is an integer number (1032320565).

Almost surely, 2^22000203240 is an apocalyptic number.

22000203240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000203240 is an abundant number, since it is smaller than the sum of its proper divisors (44068312920).

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

22000203240 is a wasteful number, since it uses less digits than its factorization.

22000203240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188642 (or 188638 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 22000203240 its reverse (4230200022), we get a palindrome (26230403262).

The spelling of 22000203240 in words is "twenty-two billion, two hundred three thousand, two hundred forty".