12121010201 has 16 divisors (see below), whose sum is σ = 12714192000. Its totient is φ = 11540567808.

The previous prime is 12121010197. The next prime is 12121010203. The reversal of 12121010201 is 10201012121.

It is a cyclic number.

It is not a de Polignac number, because 12121010201 - 2² = 12121010197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121010203) 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, 642830 + ... + 661416.

It is an arithmetic number, because the mean of its divisors is an integer number (794637000).

Almost surely, 2^12121010201 is an apocalyptic number.

It is an amenable number.

12121010201 is a deficient number, since it is larger than the sum of its proper divisors (593181799).

12121010201 is a wasteful number, since it uses less digits than its factorization.

12121010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18928.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12121010201 its reverse (10201012121), we get a palindrome (22322022322).

The spelling of 12121010201 in words is "twelve billion, one hundred twenty-one million, ten thousand, two hundred one".