12121020201 has 16 divisors (see below), whose sum is σ = 16365996288. Its totient is φ = 7978800000.

The previous prime is 12121020169. The next prime is 12121020251. The reversal of 12121020201 is 10202012121.

It is not a de Polignac number, because 12121020201 - 2⁵ = 12121020169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121020251) 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, 56701 + ... + 165701.

It is an arithmetic number, because the mean of its divisors is an integer number (1022874768).

Almost surely, 2^12121020201 is an apocalyptic number.

It is an amenable number.

12121020201 is a deficient number, since it is larger than the sum of its proper divisors (4244976087).

12121020201 is a wasteful number, since it uses less digits than its factorization.

12121020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109472.

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

Adding to 12121020201 its reverse (10202012121), we get a palindrome (22323032322).

The spelling of 12121020201 in words is "twelve billion, one hundred twenty-one million, twenty thousand, two hundred one".