122601601 has 4 divisors (see below), whose sum is σ = 124153600. Its totient is φ = 121049604.

The previous prime is 122601599. The next prime is 122601629. The reversal of 122601601 is 106106221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106106221 = 13 ⋅8162017.

It is a cyclic number.

It is not a de Polignac number, because 122601601 - 2¹ = 122601599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122601631) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 775881 + ... + 776038.

It is an arithmetic number, because the mean of its divisors is an integer number (31038400).

Almost surely, 2^122601601 is an apocalyptic number.

It is an amenable number.

122601601 is a deficient number, since it is larger than the sum of its proper divisors (1551999).

122601601 is an equidigital number, since it uses as much as digits as its factorization.

122601601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551998.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 122601601 is about 11072.5607246021. The cubic root of 122601601 is about 496.7814611363.

Adding to 122601601 its reverse (106106221), we get a palindrome (228707822).

It can be divided in two parts, 12260 and 1601, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 122601601 in words is "one hundred twenty-two million, six hundred one thousand, six hundred one".