21202067282 has 32 divisors (see below), whose sum is σ = 36843577920. Its totient is φ = 9049259520.

The previous prime is 21202067273. The next prime is 21202067297. The reversal of 21202067282 is 28276020212.

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, 177203 + ... + 271670.

It is an arithmetic number, because the mean of its divisors is an integer number (1151361810).

Almost surely, 2^21202067282 is an apocalyptic number.

21202067282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21202067282 is a deficient number, since it is larger than the sum of its proper divisors (15641510638).

21202067282 is a wasteful number, since it uses less digits than its factorization.

21202067282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449018.

The product of its (nonzero) digits is 10752, while the sum is 32.

Adding to 21202067282 its reverse (28276020212), we get a palindrome (49478087494).

The spelling of 21202067282 in words is "twenty-one billion, two hundred two million, sixty-seven thousand, two hundred eighty-two".