121400422 has 32 divisors (see below), whose sum is σ = 218000160. Its totient is φ = 49969920.

The previous prime is 121400401. The next prime is 121400429. The reversal of 121400422 is 224004121.

It is a junction number, because it is equal to n+sod(n) for n = 121400396 and 121400405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121400429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11154 + ... + 19162.

It is an arithmetic number, because the mean of its divisors is an integer number (6812505).

Almost surely, 2^121400422 is an apocalyptic number.

121400422 is a deficient number, since it is larger than the sum of its proper divisors (96599738).

121400422 is a wasteful number, since it uses less digits than its factorization.

121400422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 121400422 is about 11018.1859668459. The cubic root of 121400422 is about 495.1537419937.

Adding to 121400422 its reverse (224004121), we get a palindrome (345404543).

The spelling of 121400422 in words is "one hundred twenty-one million, four hundred thousand, four hundred twenty-two".