122121203 has 2 divisors, whose sum is σ = 122121204. Its totient is φ = 122121202.

The previous prime is 122121199. The next prime is 122121239. The reversal of 122121203 is 302121221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (302121221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122121203 - 2² = 122121199 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (122121253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060601 + 61060602.

It is an arithmetic number, because the mean of its divisors is an integer number (61060602).

Almost surely, 2^122121203 is an apocalyptic number.

122121203 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121203 is an equidigital number, since it uses as much as digits as its factorization.

122121203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 122121203 is about 11050.8462571877. The cubic root of 122121203 is about 496.1317545297.

Adding to 122121203 its reverse (302121221), we get a palindrome (424242424).

The spelling of 122121203 in words is "one hundred twenty-two million, one hundred twenty-one thousand, two hundred three".