222440001240 has 64 divisors (see below), whose sum is σ = 667465401600. Its totient is φ = 59304409472.

The previous prime is 222440001239. The next prime is 222440001283. The reversal of 222440001240 is 42100044222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357541 + ... + 756779.

It is an arithmetic number, because the mean of its divisors is an integer number (10429146900).

Almost surely, 2^222440001240 is an apocalyptic number.

222440001240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222440001240 is an abundant number, since it is smaller than the sum of its proper divisors (445025400360).

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

222440001240 is a wasteful number, since it uses less digits than its factorization.

222440001240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403896 (or 403892 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 222440001240 its reverse (42100044222), we get a palindrome (264540045462).

The spelling of 222440001240 in words is "two hundred twenty-two billion, four hundred forty million, one thousand, two hundred forty".