222401404040436 has 18 divisors (see below), whose sum is σ = 562181326880082. Its totient is φ = 74133801346800.

The previous prime is 222401404040401. The next prime is 222401404040443. The reversal of 222401404040436 is 634040404104222.

222401404040436 is a `hidden beast` number, since 2 + 2 + 2 + 4 + 0 + 140 + 40 + 40 + 436 = 666.

It can be written as a sum of positive squares in only one way, i.e., 173425984956900 + 48975419083536 = 13169130^2 + 6998244^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6177816778901 = 222401404040436 / (2 + 2 + 2 + 4 + 0 + 1 + 4 + 0 + 4 + 0 + 4 + 0 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 222401404040436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3088908389415 + ... + 3088908389486.

Almost surely, 2^{222401404040436} is an apocalyptic number.

It is an amenable number.

222401404040436 is an abundant number, since it is smaller than the sum of its proper divisors (339779922839646).

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

222401404040436 is a wasteful number, since it uses less digits than its factorization.

222401404040436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6177816778911 (or 6177816778906 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 222401404040436 its reverse (634040404104222), we get a palindrome (856441808144658).

The spelling of 222401404040436 in words is "two hundred twenty-two trillion, four hundred one billion, four hundred four million, forty thousand, four hundred thirty-six".