122121253 has 2 divisors, whose sum is σ = 122121254. Its totient is φ = 122121252.

The previous prime is 122121239. The next prime is 122121257. The reversal of 122121253 is 352121221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103999204 + 18122049 = 10198^2 + 4257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122121253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122121253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060626 + 61060627.

It is an arithmetic number, because the mean of its divisors is an integer number (61060627).

Almost surely, 2^122121253 is an apocalyptic number.

It is an amenable number.

122121253 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121253 is an equidigital number, since it uses as much as digits as its factorization.

122121253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 19.

The square root of 122121253 is about 11050.8485194577. The cubic root of 122121253 is about 496.1318222400.

Adding to 122121253 its reverse (352121221), we get a palindrome (474242474).

The spelling of 122121253 in words is "one hundred twenty-two million, one hundred twenty-one thousand, two hundred fifty-three".