222015463 has 4 divisors (see below), whose sum is σ = 226204488. Its totient is φ = 217826440.

The previous prime is 222015449. The next prime is 222015491. The reversal of 222015463 is 364510222.

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

It is a cyclic number.

It is not a de Polignac number, because 222015463 - 2¹³ = 222007271 is a prime.

It is a super-2 number, since 2×222015463² = 98581731622208738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222015403) 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, 2094433 + ... + 2094538.

It is an arithmetic number, because the mean of its divisors is an integer number (56551122).

Almost surely, 2^222015463 is an apocalyptic number.

222015463 is a deficient number, since it is larger than the sum of its proper divisors (4189025).

222015463 is an equidigital number, since it uses as much as digits as its factorization.

222015463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189024.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 222015463 is about 14900.1833210199. The cubic root of 222015463 is about 605.5189527664.

Adding to 222015463 its reverse (364510222), we get a palindrome (586525685).

The spelling of 222015463 in words is "two hundred twenty-two million, fifteen thousand, four hundred sixty-three".