1110221947 has 2 divisors, whose sum is σ = 1110221948. Its totient is φ = 1110221946.

The previous prime is 1110221929. The next prime is 1110222053. The reversal of 1110221947 is 7491220111.

It is a weak prime.

It is an emirp because it is prime and its reverse (7491220111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1110221947 - 2¹¹ = 1110219899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1110221347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555110973 + 555110974.

It is an arithmetic number, because the mean of its divisors is an integer number (555110974).

Almost surely, 2^1110221947 is an apocalyptic number.

1110221947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110221947 is an equidigital number, since it uses as much as digits as its factorization.

1110221947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1110221947 is about 33319.9932022802. The cubic root of 1110221947 is about 1035.4678109571.

The spelling of 1110221947 in words is "one billion, one hundred ten million, two hundred twenty-one thousand, nine hundred forty-seven".