21202030010 has 48 divisors (see below), whose sum is σ = 44713982880. Its totient is φ = 7216947360.

The previous prime is 21202029973. The next prime is 21202030037. The reversal of 21202030010 is 1003020212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21202029973 and 21202030000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87536 + ... + 223755.

It is an arithmetic number, because the mean of its divisors is an integer number (931541310).

Almost surely, 2^21202030010 is an apocalyptic number.

21202030010 is an abundant number, since it is smaller than the sum of its proper divisors (23511952870).

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

21202030010 is a wasteful number, since it uses less digits than its factorization.

21202030010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311451 (or 311444 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21202030010 its reverse (1003020212), we get a palindrome (22205050222).

The spelling of 21202030010 in words is "twenty-one billion, two hundred two million, thirty thousand, ten".