122124251 has 4 divisors (see below), whose sum is σ = 123333504. Its totient is φ = 120915000.

The previous prime is 122124239. The next prime is 122124263. The reversal of 122124251 is 152421221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (122124239) and next prime (122124263).

It is a cyclic number.

It is not a de Polignac number, because 122124251 - 2¹⁰ = 122123227 is a prime.

It is a super-2 number, since 2×122124251² = 29828665364622002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122124551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604475 + ... + 604676.

It is an arithmetic number, because the mean of its divisors is an integer number (30833376).

Almost surely, 2^122124251 is an apocalyptic number.

122124251 is a deficient number, since it is larger than the sum of its proper divisors (1209253).

122124251 is a wasteful number, since it uses less digits than its factorization.

122124251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209252.

The product of its digits is 320, while the sum is 20.

The square root of 122124251 is about 11050.9841643177. The cubic root of 122124251 is about 496.1358821149.

Adding to 122124251 its reverse (152421221), we get a palindrome (274545472).

The spelling of 122124251 in words is "one hundred twenty-two million, one hundred twenty-four thousand, two hundred fifty-one".