121210201 has 16 divisors (see below), whose sum is σ = 140848128. Its totient is φ = 102168000.

The previous prime is 121210183. The next prime is 121210213. The reversal of 121210201 is 102012121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121210201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121210231) 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, 121816 + ... + 122806.

It is an arithmetic number, because the mean of its divisors is an integer number (8803008).

Almost surely, 2^121210201 is an apocalyptic number.

It is an amenable number.

121210201 is a deficient number, since it is larger than the sum of its proper divisors (19637927).

121210201 is a wasteful number, since it uses less digits than its factorization.

121210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 121210201 is about 11009.5504449546. The cubic root of 121210201 is about 494.8949897981.

Adding to 121210201 its reverse (102012121), we get a palindrome (223222322).

The spelling of 121210201 in words is "one hundred twenty-one million, two hundred ten thousand, two hundred one".