21010250332 has 6 divisors (see below), whose sum is σ = 36767938088. Its totient is φ = 10505125164.

The previous prime is 21010250323. The next prime is 21010250357. The reversal of 21010250332 is 23305201012.

It is a super-2 number, since 2×21010250332² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626281288 + ... + 2626281295.

Almost surely, 2^21010250332 is an apocalyptic number.

It is an amenable number.

21010250332 is a deficient number, since it is larger than the sum of its proper divisors (15757687756).

21010250332 is a wasteful number, since it uses less digits than its factorization.

21010250332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252562587 (or 5252562585 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 21010250332 its reverse (23305201012), we get a palindrome (44315451344).

The spelling of 21010250332 in words is "twenty-one billion, ten million, two hundred fifty thousand, three hundred thirty-two".