222621145899 has 32 divisors (see below), whose sum is σ = 312915882240. Its totient is φ = 140628269952.

The previous prime is 222621145871. The next prime is 222621145933. The reversal of 222621145899 is 998541126222.

222621145899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222621145899 - 2⁹ = 222621145387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222621145399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541897 + ... + 859589.

It is an arithmetic number, because the mean of its divisors is an integer number (9778621320).

Almost surely, 2^222621145899 is an apocalyptic number.

222621145899 is a deficient number, since it is larger than the sum of its proper divisors (90294736341).

222621145899 is a wasteful number, since it uses less digits than its factorization.

222621145899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317899.

The product of its digits is 1244160, while the sum is 51.

The spelling of 222621145899 in words is "two hundred twenty-two billion, six hundred twenty-one million, one hundred forty-five thousand, eight hundred ninety-nine".