122520451 has 2 divisors, whose sum is σ = 122520452. Its totient is φ = 122520450.

The previous prime is 122520439. The next prime is 122520473. The reversal of 122520451 is 154025221.

It is an a-pointer prime, because the next prime (122520473) can be obtained adding 122520451 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122520451 - 2¹³ = 122512259 is a prime.

It is a super-2 number, since 2×122520451² = 30022521826486802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122520481) 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 as a sum of consecutive naturals, namely, 61260225 + 61260226.

It is an arithmetic number, because the mean of its divisors is an integer number (61260226).

Almost surely, 2^122520451 is an apocalyptic number.

122520451 is a deficient number, since it is larger than the sum of its proper divisors (1).

122520451 is an equidigital number, since it uses as much as digits as its factorization.

122520451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 122520451 is about 11068.8956540388. The cubic root of 122520451 is about 496.6718303944.

Adding to 122520451 its reverse (154025221), we get a palindrome (276545672).

The spelling of 122520451 in words is "one hundred twenty-two million, five hundred twenty thousand, four hundred fifty-one".