122316642 has 120 divisors (see below), whose sum is σ = 336021840. Its totient is φ = 33067440.

The previous prime is 122316641. The next prime is 122316647. The reversal of 122316642 is 246613221.

122316642 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 16 + 642 = 666.

It is a super-2 number, since 2×122316642² = 29922721820312328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (122316641) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 150417 + ... + 151227.

It is an arithmetic number, because the mean of its divisors is an integer number (2800182).

Almost surely, 2^122316642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122316642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168010920).

122316642 is an abundant number, since it is smaller than the sum of its proper divisors (213705198).

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

122316642 is a wasteful number, since it uses less digits than its factorization.

122316642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 842 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 122316642 is about 11059.6854385647. The cubic root of 122316642 is about 496.3962781116.

Adding to 122316642 its reverse (246613221), we get a palindrome (368929863).

The spelling of 122316642 in words is "one hundred twenty-two million, three hundred sixteen thousand, six hundred forty-two".