2229971 has 2 divisors, whose sum is σ = 2229972. Its totient is φ = 2229970.

The previous prime is 2229967. The next prime is 2229991. The reversal of 2229971 is 1799222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2229971 - 2² = 2229967 is a prime.

It is not a weakly prime, because it can be changed into another prime (2229991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114985 + 1114986.

It is an arithmetic number, because the mean of its divisors is an integer number (1114986).

2^2229971 is an apocalyptic number.

2229971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2229971 is an equidigital number, since it uses as much as digits as its factorization.

2229971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 2229971 is about 1493.3087423571. The cubic root of 2229971 is about 130.6470892797.

The spelling of 2229971 in words is "two million, two hundred twenty-nine thousand, nine hundred seventy-one".