121422204 has 18 divisors (see below), whose sum is σ = 306928440. Its totient is φ = 40474056.

The previous prime is 121422187. The next prime is 121422233. The reversal of 121422204 is 402224121.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1686384 + ... + 1686455.

It is an arithmetic number, because the mean of its divisors is an integer number (17051580).

Almost surely, 2^121422204 is an apocalyptic number.

It is an amenable number.

121422204 is an abundant number, since it is smaller than the sum of its proper divisors (185506236).

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

121422204 is a wasteful number, since it uses less digits than its factorization.

121422204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372849 (or 3372844 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 121422204 is about 11019.1743792355. The cubic root of 121422204 is about 495.1833541747.

Adding to 121422204 its reverse (402224121), we get a palindrome (523646325).

The spelling of 121422204 in words is "one hundred twenty-one million, four hundred twenty-two thousand, two hundred four".