21220122100213 has 8 divisors (see below), whose sum is σ = 21727325168640. Its totient is φ = 20715240328080.

The previous prime is 21220122100193. The next prime is 21220122100217. The reversal of 21220122100213 is 31200122102212.

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

It is a cyclic number.

It is not a de Polignac number, because 21220122100213 - 2⁵ = 21220122100181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220122100217) by changing a digit.

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, 580305573 + ... + 580342138.

It is an arithmetic number, because the mean of its divisors is an integer number (2715915646080).

Almost surely, 2^{21220122100213} is an apocalyptic number.

It is an amenable number.

21220122100213 is a deficient number, since it is larger than the sum of its proper divisors (507203068427).

21220122100213 is a wasteful number, since it uses less digits than its factorization.

21220122100213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160648147.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21220122100213 its reverse (31200122102212), we get a palindrome (52420244202425).

The spelling of 21220122100213 in words is "twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred thousand, two hundred thirteen".