21202201230 has 64 divisors (see below), whose sum is σ = 58166830080. Its totient is φ = 4845199104.

The previous prime is 21202201201. The next prime is 21202201247. The reversal of 21202201230 is 3210220212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1506466 + ... + 1520474.

It is an arithmetic number, because the mean of its divisors is an integer number (908856720).

Almost surely, 2^21202201230 is an apocalyptic number.

21202201230 is an abundant number, since it is smaller than the sum of its proper divisors (36964628850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21202201230 is a wasteful number, since it uses less digits than its factorization.

21202201230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21233.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21202201230 its reverse (3210220212), we get a palindrome (24412421442).

The spelling of 21202201230 in words is "twenty-one billion, two hundred two million, two hundred one thousand, two hundred thirty".