22550421340 has 24 divisors (see below), whose sum is σ = 47387042640. Its totient is φ = 9014233728.

The previous prime is 22550421331. The next prime is 22550421359. The reversal of 22550421340 is 4312405522.

It is a super-2 number, since 2×22550421340² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22550421299 and 22550421308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339705 + ... + 400624.

It is an arithmetic number, because the mean of its divisors is an integer number (1974460110).

Almost surely, 2^22550421340 is an apocalyptic number.

22550421340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22550421340 is an abundant number, since it is smaller than the sum of its proper divisors (24836621300).

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

22550421340 is a wasteful number, since it uses less digits than its factorization.

22550421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741861 (or 741859 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22550421340 its reverse (4312405522), we get a palindrome (26862826862).

The spelling of 22550421340 in words is "twenty-two billion, five hundred fifty million, four hundred twenty-one thousand, three hundred forty".