21202130010 has 32 divisors (see below), whose sum is σ = 50950995840. Its totient is φ = 5646580928.

The previous prime is 21202129969. The next prime is 21202130021. The reversal of 21202130010 is 1003120212.

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, 433950 + ... + 480329.

It is an arithmetic number, because the mean of its divisors is an integer number (1592218620).

Almost surely, 2^21202130010 is an apocalyptic number.

21202130010 is an abundant number, since it is smaller than the sum of its proper divisors (29748865830).

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

21202130010 is a wasteful number, since it uses less digits than its factorization.

21202130010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915062.

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

Adding to 21202130010 its reverse (1003120212), we get a palindrome (22205250222).

The spelling of 21202130010 in words is "twenty-one billion, two hundred two million, one hundred thirty thousand, ten".