22133221213240 has 64 divisors (see below), whose sum is σ = 49997557748160. Its totient is φ = 8818127831040.

The previous prime is 22133221213219. The next prime is 22133221213273. The reversal of 22133221213240 is 4231212233122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22133221213199 and 22133221213208.

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 15 ways as a sum of consecutive naturals, for example, 137887669 + ... + 138048091.

It is an arithmetic number, because the mean of its divisors is an integer number (781211839815).

Almost surely, 2^{22133221213240} is an apocalyptic number.

22133221213240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22133221213240 is an abundant number, since it is smaller than the sum of its proper divisors (27864336534920).

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

22133221213240 is a wasteful number, since it uses less digits than its factorization.

22133221213240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174112 (or 174108 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 22133221213240 its reverse (4231212233122), we get a palindrome (26364433446362).

The spelling of 22133221213240 in words is "twenty-two trillion, one hundred thirty-three billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred forty".