21113312220202 has 16 divisors (see below), whose sum is σ = 33336900322560. Its totient is φ = 10001015164512.

The previous prime is 21113312220197. The next prime is 21113312220223. The reversal of 21113312220202 is 20202221331112.

It is a super-2 number, since 2×21113312220202² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 22346023 + ... + 23271685.

It is an arithmetic number, because the mean of its divisors is an integer number (2083556270160).

Almost surely, 2^{21113312220202} is an apocalyptic number.

21113312220202 is a deficient number, since it is larger than the sum of its proper divisors (12223588102358).

21113312220202 is a wasteful number, since it uses less digits than its factorization.

21113312220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525917.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21113312220202 its reverse (20202221331112), we get a palindrome (41315533551314).

The spelling of 21113312220202 in words is "twenty-one trillion, one hundred thirteen billion, three hundred twelve million, two hundred twenty thousand, two hundred two".