122601650 has 12 divisors (see below), whose sum is σ = 228039162. Its totient is φ = 49040640.

The previous prime is 122601649. The next prime is 122601653. The reversal of 122601650 is 56106221.

It can be written as a sum of positive squares in 3 ways, for example, as 65885689 + 56715961 = 8117^2 + 7531^2 .

It is not an unprimeable number, because it can be changed into a prime (122601653) 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 5 ways as a sum of consecutive naturals, for example, 1225967 + ... + 1226066.

Almost surely, 2^122601650 is an apocalyptic number.

122601650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122601650 is a deficient number, since it is larger than the sum of its proper divisors (105437512).

122601650 is a wasteful number, since it uses less digits than its factorization.

122601650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452045 (or 2452040 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 122601650 is about 11072.5629372788. The cubic root of 122601650 is about 496.7815273189.

Adding to 122601650 its reverse (56106221), we get a palindrome (178707871).

The spelling of 122601650 in words is "one hundred twenty-two million, six hundred one thousand, six hundred fifty".