1121214397 has 2 divisors, whose sum is σ = 1121214398. Its totient is φ = 1121214396.

The previous prime is 1121214389. The next prime is 1121214461. The reversal of 1121214397 is 7934121211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1116829561 + 4384836 = 33419^2 + 2094^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121214397 - 2³ = 1121214389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121214307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560607198 + 560607199.

It is an arithmetic number, because the mean of its divisors is an integer number (560607199).

Almost surely, 2^1121214397 is an apocalyptic number.

It is an amenable number.

1121214397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121214397 is an equidigital number, since it uses as much as digits as its factorization.

1121214397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 1121214397 is about 33484.5396713170. The cubic root of 1121214397 is about 1038.8740270107.

The spelling of 1121214397 in words is "one billion, one hundred twenty-one million, two hundred fourteen thousand, three hundred ninety-seven".