20020101201 has 6 divisors (see below), whose sum is σ = 28917923970. Its totient is φ = 13346734128.

The previous prime is 20020101169. The next prime is 20020101217. The reversal of 20020101201 is 10210102002.

It can be written as a sum of positive squares in only one way, i.e., 16225664400 + 3794436801 = 127380^2 + 61599^2 .

It is not a de Polignac number, because 20020101201 - 2⁵ = 20020101169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2224455689 = 20020101201 / (2 + 0 + 0 + 2 + 0 + 1 + 0 + 1 + 2 + 0 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20020101001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1112227836 + ... + 1112227853.

It is an arithmetic number, because the mean of its divisors is an integer number (4819653995).

Almost surely, 2^20020101201 is an apocalyptic number.

It is an amenable number.

20020101201 is a deficient number, since it is larger than the sum of its proper divisors (8897822769).

20020101201 is a wasteful number, since it uses less digits than its factorization.

20020101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224455695 (or 2224455692 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20020101201 its reverse (10210102002), we get a palindrome (30230203203).

The spelling of 20020101201 in words is "twenty billion, twenty million, one hundred one thousand, two hundred one".