222987549013 has 4 divisors (see below), whose sum is σ = 222990140428. Its totient is φ = 222984957600.

The previous prime is 222987549011. The next prime is 222987549049. The reversal of 222987549013 is 310945789222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100604421124 + 122383127889 = 317182^2 + 349833^2 .

It is a cyclic number.

It is not a de Polignac number, because 222987549013 - 2¹ = 222987549011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222987549011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162038 + ... + 1340263.

It is an arithmetic number, because the mean of its divisors is an integer number (55747535107).

Almost surely, 2^222987549013 is an apocalyptic number.

It is an amenable number.

222987549013 is a deficient number, since it is larger than the sum of its proper divisors (2591415).

222987549013 is an equidigital number, since it uses as much as digits as its factorization.

222987549013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591414.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 222987549013 in words is "two hundred twenty-two billion, nine hundred eighty-seven million, five hundred forty-nine thousand, thirteen".