121210020201 has 16 divisors (see below), whose sum is σ = 168406588800. Its totient is φ = 77450744448.

The previous prime is 121210020163. The next prime is 121210020203. The reversal of 121210020201 is 102020012121.

It is not a de Polignac number, because 121210020201 - 2¹³ = 121210012009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121210020203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5072821 + ... + 5096658.

It is an arithmetic number, because the mean of its divisors is an integer number (10525411800).

Almost surely, 2^121210020201 is an apocalyptic number.

It is an amenable number.

121210020201 is a deficient number, since it is larger than the sum of its proper divisors (47196568599).

121210020201 is a wasteful number, since it uses less digits than its factorization.

121210020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10169648.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121210020201 its reverse (102020012121), we get a palindrome (223230032322).

The spelling of 121210020201 in words is "one hundred twenty-one billion, two hundred ten million, twenty thousand, two hundred one".