122125550 has 12 divisors (see below), whose sum is σ = 227153616. Its totient is φ = 48850200.

The previous prime is 122125543. The next prime is 122125573. The reversal of 122125550 is 55521221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1221206 + ... + 1221305.

It is an arithmetic number, because the mean of its divisors is an integer number (18929468).

Almost surely, 2^122125550 is an apocalyptic number.

122125550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122125550 is a deficient number, since it is larger than the sum of its proper divisors (105028066).

122125550 is a wasteful number, since it uses less digits than its factorization.

122125550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442523 (or 2442518 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 122125550 is about 11051.0429372073. The cubic root of 122125550 is about 496.1376411928.

Adding to 122125550 its reverse (55521221), we get a palindrome (177646771).

The spelling of 122125550 in words is "one hundred twenty-two million, one hundred twenty-five thousand, five hundred fifty".