122520550 has 24 divisors (see below), whose sum is σ = 239884200. Its totient is φ = 46428480.

The previous prime is 122520509. The next prime is 122520599. The reversal of 122520550 is 55025221.

122520550 is nontrivially palindromic in base 15.

It is a super-2 number, since 2×122520550² = 30022570344605000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63535 + ... + 65434.

It is an arithmetic number, because the mean of its divisors is an integer number (9995175).

Almost surely, 2^122520550 is an apocalyptic number.

122520550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122520550 is a deficient number, since it is larger than the sum of its proper divisors (117363650).

122520550 is a wasteful number, since it uses less digits than its factorization.

122520550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129000 (or 128995 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 122520550 is about 11068.9001260288. The cubic root of 122520550 is about 496.6719641693.

Adding to 122520550 its reverse (55025221), we get a palindrome (177545771).

The spelling of 122520550 in words is "one hundred twenty-two million, five hundred twenty thousand, five hundred fifty".