222213012277 has 2 divisors, whose sum is σ = 222213012278. Its totient is φ = 222213012276.

The previous prime is 222213012269. The next prime is 222213012299. The reversal of 222213012277 is 772210312222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204341065681 + 17871946596 = 452041^2 + 133686^2 .

It is a cyclic number.

It is not a de Polignac number, because 222213012277 - 2³ = 222213012269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222213012377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106506138 + 111106506139.

It is an arithmetic number, because the mean of its divisors is an integer number (111106506139).

Almost surely, 2^222213012277 is an apocalyptic number.

It is an amenable number.

222213012277 is a deficient number, since it is larger than the sum of its proper divisors (1).

222213012277 is an equidigital number, since it uses as much as digits as its factorization.

222213012277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

Adding to 222213012277 its reverse (772210312222), we get a palindrome (994423324499).

The spelling of 222213012277 in words is "two hundred twenty-two billion, two hundred thirteen million, twelve thousand, two hundred seventy-seven".