22000203500 has 48 divisors (see below), whose sum is σ = 52416497952. Its totient is φ = 8000072000.

The previous prime is 22000203481. The next prime is 22000203521. The reversal of 22000203500 is 530200022.

22000203500 is a modest number, since divided by 203500 gives 22000 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1994519 + ... + 2005518.

It is an arithmetic number, because the mean of its divisors is an integer number (1092010374).

Almost surely, 2^22000203500 is an apocalyptic number.

22000203500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000203500 is an abundant number, since it is smaller than the sum of its proper divisors (30416294452).

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

22000203500 is a wasteful number, since it uses less digits than its factorization.

22000203500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000067 (or 4000055 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

Adding to 22000203500 its reverse (530200022), we get a palindrome (22530403522).

The spelling of 22000203500 in words is "twenty-two billion, two hundred three thousand, five hundred".