222992947 has 2 divisors, whose sum is σ = 222992948. Its totient is φ = 222992946.

The previous prime is 222992933. The next prime is 222992993. The reversal of 222992947 is 749299222.

222992947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (222992993) can be obtained adding 222992947 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222992947 - 2²³ = 214604339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222992897 and 222992906.

It is not a weakly prime, because it can be changed into another prime (222992647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111496473 + 111496474.

It is an arithmetic number, because the mean of its divisors is an integer number (111496474).

Almost surely, 2^222992947 is an apocalyptic number.

222992947 is a deficient number, since it is larger than the sum of its proper divisors (1).

222992947 is an equidigital number, since it uses as much as digits as its factorization.

222992947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 222992947 is about 14932.9483692940. The cubic root of 222992947 is about 606.4063062162.

The spelling of 222992947 in words is "two hundred twenty-two million, nine hundred ninety-two thousand, nine hundred forty-seven".