1147216201 has 2 divisors, whose sum is σ = 1147216202. Its totient is φ = 1147216200.

The previous prime is 1147216199. The next prime is 1147216223. The reversal of 1147216201 is 1026127411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 981192976 + 166023225 = 31324^2 + 12885^2 .

It is an emirp because it is prime and its reverse (1026127411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1147216201 - 2¹ = 1147216199 is a prime.

It is a super-2 number, since 2×1147216201² = 2632210023673744802, which contains 22 as substring.

Together with 1147216199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1147216271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573608100 + 573608101.

It is an arithmetic number, because the mean of its divisors is an integer number (573608101).

Almost surely, 2^1147216201 is an apocalyptic number.

It is an amenable number.

1147216201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147216201 is an equidigital number, since it uses as much as digits as its factorization.

1147216201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1147216201 is about 33870.5801692265. The cubic root of 1147216201 is about 1046.8434912397.

The spelling of 1147216201 in words is "one billion, one hundred forty-seven million, two hundred sixteen thousand, two hundred one".