112121201 has 2 divisors, whose sum is σ = 112121202. Its totient is φ = 112121200.

The previous prime is 112121173. The next prime is 112121209. The reversal of 112121201 is 102121211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60855601 + 51265600 = 7801^2 + 7160^2 .

It is an emirp because it is prime and its reverse (102121211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112121201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112121209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060600 + 56060601.

It is an arithmetic number, because the mean of its divisors is an integer number (56060601).

Almost surely, 2^112121201 is an apocalyptic number.

It is an amenable number.

112121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

112121201 is an equidigital number, since it uses as much as digits as its factorization.

112121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 112121201 is about 10588.7299049508. The cubic root of 112121201 is about 482.2022661363.

Adding to 112121201 its reverse (102121211), we get a palindrome (214242412).

It can be divided in two parts, 1121 and 21201, that added together give a palindrome (22322).

The spelling of 112121201 in words is "one hundred twelve million, one hundred twenty-one thousand, two hundred one".