121400106 has 16 divisors (see below), whose sum is σ = 242914464. Its totient is φ = 40447664.

The previous prime is 121400099. The next prime is 121400129. The reversal of 121400106 is 601004121.

It is a super-2 number, since 2×121400106² = 29475971473622472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16060 + ... + 22376.

It is an arithmetic number, because the mean of its divisors is an integer number (15182154).

Almost surely, 2^121400106 is an apocalyptic number.

121400106 is an abundant number, since it is smaller than the sum of its proper divisors (121514358).

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

121400106 is a wasteful number, since it uses less digits than its factorization.

121400106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9525.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 121400106 is about 11018.1716269080. The cubic root of 121400106 is about 495.1533123721.

Adding to 121400106 its reverse (601004121), we get a palindrome (722404227).

The spelling of 121400106 in words is "one hundred twenty-one million, four hundred thousand, one hundred six".