122121204 has 48 divisors (see below), whose sum is σ = 301667520. Its totient is φ = 38384640.

The previous prime is 122121203. The next prime is 122121239. The reversal of 122121204 is 402121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10884 + ... + 19044.

It is an arithmetic number, because the mean of its divisors is an integer number (6284740).

Almost surely, 2^122121204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122121204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150833760).

122121204 is an abundant number, since it is smaller than the sum of its proper divisors (179546316).

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

122121204 is a wasteful number, since it uses less digits than its factorization.

122121204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8240 (or 8238 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 122121204 is about 11050.8463024331. The cubic root of 122121204 is about 496.1317558839.

Adding to 122121204 its reverse (402121221), we get a palindrome (524242425).

The spelling of 122121204 in words is "one hundred twenty-two million, one hundred twenty-one thousand, two hundred four".