20012102201 has 24 divisors (see below), whose sum is σ = 25122827520. Its totient is φ = 15800454432.

The previous prime is 20012102167. The next prime is 20012102249. The reversal of 20012102201 is 10220121002.

It is a happy number.

It is not a de Polignac number, because 20012102201 - 2³⁰ = 18938360377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20012102291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272330 + ... + 337916.

It is an arithmetic number, because the mean of its divisors is an integer number (1046784480).

Almost surely, 2^20012102201 is an apocalyptic number.

It is an amenable number.

20012102201 is a deficient number, since it is larger than the sum of its proper divisors (5110725319).

20012102201 is a wasteful number, since it uses less digits than its factorization.

20012102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66093 (or 66086 counting only the distinct ones).

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

Adding to 20012102201 its reverse (10220121002), we get a palindrome (30232223203).

The spelling of 20012102201 in words is "twenty billion, twelve million, one hundred two thousand, two hundred one".