222241621578 has 8 divisors (see below), whose sum is σ = 444483243168. Its totient is φ = 74080540524.

The previous prime is 222241621573. The next prime is 222241621621. The reversal of 222241621578 is 875126142222.

It is a sphenic number, since it is the product of 3 distinct primes.

222241621578 is an admirable number.

It is a super-3 number, since 3×222241621578³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (222241621573) 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, 18520135126 + ... + 18520135137.

It is an arithmetic number, because the mean of its divisors is an integer number (55560405396).

Almost surely, 2^222241621578 is an apocalyptic number.

222241621578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

222241621578 is a wasteful number, since it uses less digits than its factorization.

222241621578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37040270268.

The product of its digits is 215040, while the sum is 42.

The spelling of 222241621578 in words is "two hundred twenty-two billion, two hundred forty-one million, six hundred twenty-one thousand, five hundred seventy-eight".