22221303240 has 64 divisors (see below), whose sum is σ = 66680501760. Its totient is φ = 5924206080.

The previous prime is 22221303229. The next prime is 22221303241. The reversal of 22221303240 is 4230312222.

It is a super-3 number, since 3×22221303240³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22221303241) 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, 512820 + ... + 554460.

It is an arithmetic number, because the mean of its divisors is an integer number (1041882840).

Almost surely, 2^22221303240 is an apocalyptic number.

22221303240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221303240 is an abundant number, since it is smaller than the sum of its proper divisors (44459198520).

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

22221303240 is a wasteful number, since it uses less digits than its factorization.

22221303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46102 (or 46098 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22221303240 its reverse (4230312222), we get a palindrome (26451615462).

The spelling of 22221303240 in words is "twenty-two billion, two hundred twenty-one million, three hundred three thousand, two hundred forty".