21130002201 has 64 divisors (see below), whose sum is σ = 37043251200. Its totient is φ = 10379404800.

The previous prime is 21130002199. The next prime is 21130002247. The reversal of 21130002201 is 10220003112.

It is not a de Polignac number, because 21130002201 - 2¹ = 21130002199 is a prime.

It is a super-3 number, since 3×21130002201³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21130002281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2493111 + ... + 2501571.

It is an arithmetic number, because the mean of its divisors is an integer number (578800800).

Almost surely, 2^21130002201 is an apocalyptic number.

21130002201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21130002201 is a deficient number, since it is larger than the sum of its proper divisors (15913248999).

21130002201 is a wasteful number, since it uses less digits than its factorization.

21130002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9070.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21130002201 its reverse (10220003112), we get a palindrome (31350005313).

The spelling of 21130002201 in words is "twenty-one billion, one hundred thirty million, two thousand, two hundred one".