21202221130 has 32 divisors (see below), whose sum is σ = 39068568000. Its totient is φ = 8280045312.

The previous prime is 21202221113. The next prime is 21202221151. The reversal of 21202221130 is 3112220212.

It is a happy number.

It is a super-3 number, since 3×21202221130³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1112421 + ... + 1131319.

It is an arithmetic number, because the mean of its divisors is an integer number (1220892750).

Almost surely, 2^21202221130 is an apocalyptic number.

21202221130 is a deficient number, since it is larger than the sum of its proper divisors (17866346870).

21202221130 is a wasteful number, since it uses less digits than its factorization.

21202221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21558.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21202221130 its reverse (3112220212), we get a palindrome (24314441342).

The spelling of 21202221130 in words is "twenty-one billion, two hundred two million, two hundred twenty-one thousand, one hundred thirty".