121222193 has 2 divisors, whose sum is σ = 121222194. Its totient is φ = 121222192.

The previous prime is 121222187. The next prime is 121222237. The reversal of 121222193 is 391222121.

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., 62362609 + 58859584 = 7897^2 + 7672^2 .

It is an emirp because it is prime and its reverse (391222121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121222193 - 2²⁰ = 120173617 is a prime.

It is not a weakly prime, because it can be changed into another prime (121222133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611096 + 60611097.

It is an arithmetic number, because the mean of its divisors is an integer number (60611097).

Almost surely, 2^121222193 is an apocalyptic number.

It is an amenable number.

121222193 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222193 is an equidigital number, since it uses as much as digits as its factorization.

121222193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 121222193 is about 11010.0950495443. The cubic root of 121222193 is about 494.9113101654.

The spelling of 121222193 in words is "one hundred twenty-one million, two hundred twenty-two thousand, one hundred ninety-three".