222860721049 has 4 divisors (see below), whose sum is σ = 222895609380. Its totient is φ = 222825832720.

The previous prime is 222860721037. The next prime is 222860721091. The reversal of 222860721049 is 940127068222.

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 683299600 + 222177421449 = 26140^2 + 471357^2 .

It is a cyclic number.

It is not a de Polignac number, because 222860721049 - 2¹⁷ = 222860589977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222860720996 and 222860721014.

It is not an unprimeable number, because it can be changed into a prime (222860721649) 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, 17434582 + ... + 17447359.

It is an arithmetic number, because the mean of its divisors is an integer number (55723902345).

Almost surely, 2^222860721049 is an apocalyptic number.

It is an amenable number.

222860721049 is a deficient number, since it is larger than the sum of its proper divisors (34888331).

222860721049 is an equidigital number, since it uses as much as digits as its factorization.

222860721049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34888330.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 222860721049 in words is "two hundred twenty-two billion, eight hundred sixty million, seven hundred twenty-one thousand, forty-nine".