21035022002 has 8 divisors (see below), whose sum is σ = 32924382336. Its totient is φ = 10060227892.

The previous prime is 21035021993. The next prime is 21035022061. The reversal of 21035022002 is 20022053012.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 228641498 + ... + 228641589.

It is an arithmetic number, because the mean of its divisors is an integer number (4115547792).

Almost surely, 2^21035022002 is an apocalyptic number.

21035022002 is a deficient number, since it is larger than the sum of its proper divisors (11889360334).

21035022002 is a wasteful number, since it uses less digits than its factorization.

21035022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457283112.

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 21035022002 its reverse (20022053012), we get a palindrome (41057075014).

The spelling of 21035022002 in words is "twenty-one billion, thirty-five million, twenty-two thousand, two".