121606122 has 64 divisors (see below), whose sum is σ = 272885760. Its totient is φ = 35817600.

The previous prime is 121606109. The next prime is 121606127. The reversal of 121606122 is 221606121.

It is not an unprimeable number, because it can be changed into a prime (121606127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432622 + ... + 432902.

It is an arithmetic number, because the mean of its divisors is an integer number (4263840).

Almost surely, 2^121606122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121606122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136442880).

121606122 is an abundant number, since it is smaller than the sum of its proper divisors (151279638).

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

121606122 is a wasteful number, since it uses less digits than its factorization.

121606122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 121606122 is about 11027.5165835287. The cubic root of 121606122 is about 495.4332458338.

Subtracting 121606122 from its reverse (221606121), we obtain a palindrome (99999999).

The spelling of 121606122 in words is "one hundred twenty-one million, six hundred six thousand, one hundred twenty-two".