122251413 has 4 divisors (see below), whose sum is σ = 163001888. Its totient is φ = 81500940.

The previous prime is 122251399. The next prime is 122251429. The reversal of 122251413 is 314152221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 314152221 = 3 ⋅104717407.

It is not a de Polignac number, because 122251413 - 2¹² = 122247317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122251413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122251433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20375233 + ... + 20375238.

It is an arithmetic number, because the mean of its divisors is an integer number (40750472).

Almost surely, 2^122251413 is an apocalyptic number.

It is an amenable number.

122251413 is a deficient number, since it is larger than the sum of its proper divisors (40750475).

122251413 is an equidigital number, since it uses as much as digits as its factorization.

122251413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40750474.

The product of its digits is 480, while the sum is 21.

The square root of 122251413 is about 11056.7360916321. The cubic root of 122251413 is about 496.3080230446.

The spelling of 122251413 in words is "one hundred twenty-two million, two hundred fifty-one thousand, four hundred thirteen".