20331021201 has 8 divisors (see below), whose sum is σ = 27175630944. Its totient is φ = 13520212800.

The previous prime is 20331021199. The next prime is 20331021203. The reversal of 20331021201 is 10212013302.

It is an interprime number because it is at equal distance from previous prime (20331021199) and next prime (20331021203).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20331021201 - 2¹ = 20331021199 is a prime.

It is a super-2 number, since 2×20331021201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20331021203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8448931 + ... + 8451336.

It is an arithmetic number, because the mean of its divisors is an integer number (3396953868).

Almost surely, 2^20331021201 is an apocalyptic number.

It is an amenable number.

20331021201 is a deficient number, since it is larger than the sum of its proper divisors (6844609743).

20331021201 is a wasteful number, since it uses less digits than its factorization.

20331021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16900671.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20331021201 its reverse (10212013302), we get a palindrome (30543034503).

The spelling of 20331021201 in words is "twenty billion, three hundred thirty-one million, twenty-one thousand, two hundred one".