222249407445 has 288 divisors, whose sum is σ = 457612401792. Its totient is φ = 102836169216.

The previous prime is 222249407381. The next prime is 222249407447. The reversal of 222249407445 is 544704942222.

It is not a de Polignac number, because 222249407445 - 2⁶ = 222249407381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222249407445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222249407447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 559821987 + ... + 559822383.

Almost surely, 2^222249407445 is an apocalyptic number.

It is an amenable number.

222249407445 is an abundant number, since it is smaller than the sum of its proper divisors (235362994347).

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

222249407445 is a wasteful number, since it uses less digits than its factorization.

222249407445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 222249407445 in words is "two hundred twenty-two billion, two hundred forty-nine million, four hundred seven thousand, four hundred forty-five".