122243650 has 12 divisors (see below), whose sum is σ = 227373282. Its totient is φ = 48897440.

The previous prime is 122243621. The next prime is 122243687. The reversal of 122243650 is 56342221.

It can be written as a sum of positive squares in 3 ways, for example, as 45873529 + 76370121 = 6773^2 + 8739^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222387 + ... + 1222486.

Almost surely, 2^122243650 is an apocalyptic number.

122243650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122243650 is a deficient number, since it is larger than the sum of its proper divisors (105129632).

122243650 is a wasteful number, since it uses less digits than its factorization.

122243650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444885 (or 2444880 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 122243650 is about 11056.3850330929. The cubic root of 122243650 is about 496.2975175880.

Adding to 122243650 its reverse (56342221), we get a palindrome (178585871).

The spelling of 122243650 in words is "one hundred twenty-two million, two hundred forty-three thousand, six hundred fifty".