20330021201 has 4 divisors (see below), whose sum is σ = 23234309952. Its totient is φ = 17425732452.

The previous prime is 20330021171. The next prime is 20330021269. The reversal of 20330021201 is 10212003302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20330021201 - 2⁶ = 20330021137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20330021281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452144365 + ... + 1452144378.

It is an arithmetic number, because the mean of its divisors is an integer number (5808577488).

Almost surely, 2^20330021201 is an apocalyptic number.

It is an amenable number.

20330021201 is a deficient number, since it is larger than the sum of its proper divisors (2904288751).

20330021201 is an equidigital number, since it uses as much as digits as its factorization.

20330021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904288750.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20330021201 its reverse (10212003302), we get a palindrome (30542024503).

The spelling of 20330021201 in words is "twenty billion, three hundred thirty million, twenty-one thousand, two hundred one".