122721352 has 16 divisors (see below), whose sum is σ = 247802940. Its totient is φ = 56640576.

The previous prime is 122721311. The next prime is 122721367. The reversal of 122721352 is 253127221.

It can be written as a sum of positive squares in 2 ways, for example, as 121749156 + 972196 = 11034^2 + 986^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589903 + ... + 590110.

Almost surely, 2^122721352 is an apocalyptic number.

It is an amenable number.

122721352 is an abundant number, since it is smaller than the sum of its proper divisors (125081588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122721352 is a wasteful number, since it uses less digits than its factorization.

122721352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180032 (or 1180028 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 122721352 is about 11077.9669614961. The cubic root of 122721352 is about 496.9431521142.

Adding to 122721352 its reverse (253127221), we get a palindrome (375848573).

The spelling of 122721352 in words is "one hundred twenty-two million, seven hundred twenty-one thousand, three hundred fifty-two".