121422203400 has 96 divisors (see below), whose sum is σ = 376468092000. Its totient is φ = 32374156800.

The previous prime is 121422203351. The next prime is 121422203407. The reversal of 121422203400 is 4302224121.

It is not an unprimeable number, because it can be changed into a prime (121422203407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5245051 + ... + 5268149.

It is an arithmetic number, because the mean of its divisors is an integer number (3921542625).

Almost surely, 2^121422203400 is an apocalyptic number.

121422203400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121422203400 is an abundant number, since it is smaller than the sum of its proper divisors (255045888600).

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

121422203400 is a wasteful number, since it uses less digits than its factorization.

121422203400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31879 (or 31870 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 121422203400 its reverse (4302224121), we get a palindrome (125724427521).

The spelling of 121422203400 in words is "one hundred twenty-one billion, four hundred twenty-two million, two hundred three thousand, four hundred".