121400201 has 16 divisors (see below), whose sum is σ = 134120448. Its totient is φ = 109185600.

The previous prime is 121400161. The next prime is 121400207. The reversal of 121400201 is 102004121.

It is a cyclic number.

It is not a de Polignac number, because 121400201 - 2¹⁸ = 121138057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121400207) 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, 263111 + ... + 263571.

It is an arithmetic number, because the mean of its divisors is an integer number (8382528).

Almost surely, 2^121400201 is an apocalyptic number.

It is an amenable number.

121400201 is a deficient number, since it is larger than the sum of its proper divisors (12720247).

121400201 is a wasteful number, since it uses less digits than its factorization.

121400201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 121400201 is about 11018.1759379672. The cubic root of 121400201 is about 495.1534415306.

Adding to 121400201 its reverse (102004121), we get a palindrome (223404322).

The spelling of 121400201 in words is "one hundred twenty-one million, four hundred thousand, two hundred one".