21022003201 has 16 divisors (see below), whose sum is σ = 21698953920. Its totient is φ = 20357201920.

The previous prime is 21022003181. The next prime is 21022003333. The reversal of 21022003201 is 10230022012.

It is a cyclic number.

It is not a de Polignac number, because 21022003201 - 2¹¹ = 21022001153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022003001) 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, 1722561 + ... + 1734721.

It is an arithmetic number, because the mean of its divisors is an integer number (1356184620).

Almost surely, 2^21022003201 is an apocalyptic number.

It is an amenable number.

21022003201 is a deficient number, since it is larger than the sum of its proper divisors (676950719).

21022003201 is a wasteful number, since it uses less digits than its factorization.

21022003201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12656.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 21022003201 its reverse (10230022012), we get a palindrome (31252025213).

It can be divided in two parts, 2102200 and 3201, that added together give a square (2105401 = 1451²).

The spelling of 21022003201 in words is "twenty-one billion, twenty-two million, three thousand, two hundred one".