21030222220202 has 96 divisors (see below), whose sum is σ = 36246178987200. Its totient is φ = 9095263322112.

The previous prime is 21030222220199. The next prime is 21030222220223. The reversal of 21030222220202 is 20202222203012.

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 47 ways as a sum of consecutive naturals, for example, 2996181449 + ... + 2996188467.

It is an arithmetic number, because the mean of its divisors is an integer number (377564364450).

Almost surely, 2^{21030222220202} is an apocalyptic number.

21030222220202 is a deficient number, since it is larger than the sum of its proper divisors (15215956766998).

21030222220202 is a wasteful number, since it uses less digits than its factorization.

21030222220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8760 (or 8743 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21030222220202 its reverse (20202222203012), we get a palindrome (41232444423214).

The spelling of 21030222220202 in words is "twenty-one trillion, thirty billion, two hundred twenty-two million, two hundred twenty thousand, two hundred two".