2111021147 has 2 divisors, whose sum is σ = 2111021148. Its totient is φ = 2111021146.

The previous prime is 2111021141. The next prime is 2111021219. The reversal of 2111021147 is 7411201112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111021147 - 2⁴ = 2111021131 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111021141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510573 + 1055510574.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510574).

Almost surely, 2^2111021147 is an apocalyptic number.

2111021147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111021147 is an equidigital number, since it uses as much as digits as its factorization.

2111021147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 2111021147 is about 45945.8501608143. The cubic root of 2111021147 is about 1282.8154876939.

Adding to 2111021147 its reverse (7411201112), we get a palindrome (9522222259).

The spelling of 2111021147 in words is "two billion, one hundred eleven million, twenty-one thousand, one hundred forty-seven".