22133031540 has 24 divisors (see below), whose sum is σ = 61972488480. Its totient is φ = 5902141728.

The previous prime is 22133031539. The next prime is 22133031647. The reversal of 22133031540 is 4513033122.

It is a self number, because there is not a number n which added to its sum of digits gives 22133031540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184441870 + ... + 184441989.

It is an arithmetic number, because the mean of its divisors is an integer number (2582187020).

Almost surely, 2^22133031540 is an apocalyptic number.

22133031540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22133031540 is an abundant number, since it is smaller than the sum of its proper divisors (39839456940).

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

22133031540 is a wasteful number, since it uses less digits than its factorization.

22133031540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368883871 (or 368883869 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 22133031540 its reverse (4513033122), we get a palindrome (26646064662).

The spelling of 22133031540 in words is "twenty-two billion, one hundred thirty-three million, thirty-one thousand, five hundred forty".