22233121240 has 64 divisors (see below), whose sum is σ = 54620075520. Its totient is φ = 8077680000.

The previous prime is 22233121223. The next prime is 22233121247. The reversal of 22233121240 is 4212133222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233121247) 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, 493665 + ... + 536815.

It is an arithmetic number, because the mean of its divisors is an integer number (853438680).

Almost surely, 2^22233121240 is an apocalyptic number.

22233121240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22233121240 is an abundant number, since it is smaller than the sum of its proper divisors (32386954280).

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

22233121240 is a wasteful number, since it uses less digits than its factorization.

22233121240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44344 (or 44340 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22233121240 its reverse (4212133222), we get a palindrome (26445254462).

The spelling of 22233121240 in words is "twenty-two billion, two hundred thirty-three million, one hundred twenty-one thousand, two hundred forty".