222712261440 has 112 divisors (see below), whose sum is σ = 715056776640. Its totient is φ = 58722611200.

The previous prime is 222712261439. The next prime is 222712261441. The reversal of 222712261440 is 44162217222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222712261439) and next prime (222712261441).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222712261441) 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, 1217886 + ... + 1388765.

Almost surely, 2^222712261440 is an apocalyptic number.

222712261440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222712261440 is an abundant number, since it is smaller than the sum of its proper divisors (492344515200).

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

222712261440 is a wasteful number, since it uses less digits than its factorization.

222712261440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606760 (or 2606750 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

Adding to 222712261440 its reverse (44162217222), we get a palindrome (266874478662).

The spelling of 222712261440 in words is "two hundred twenty-two billion, seven hundred twelve million, two hundred sixty-one thousand, four hundred forty".