20320222212213 has 32 divisors (see below), whose sum is σ = 33787669570560. Its totient is φ = 10553272440960.

The previous prime is 20320222212211. The next prime is 20320222212253. The reversal of 20320222212213 is 31221222202302.

It is not a de Polignac number, because 20320222212213 - 2¹ = 20320222212211 is a prime.

It is a super-2 number, since 2×20320222212213² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320222212211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10286895 + ... + 12102092.

It is an arithmetic number, because the mean of its divisors is an integer number (1055864674080).

Almost surely, 2^{20320222212213} is an apocalyptic number.

It is an amenable number.

20320222212213 is a deficient number, since it is larger than the sum of its proper divisors (13467447358347).

20320222212213 is a wasteful number, since it uses less digits than its factorization.

20320222212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22392937.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20320222212213 its reverse (31221222202302), we get a palindrome (51541444414515).

The spelling of 20320222212213 in words is "twenty trillion, three hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, two hundred thirteen".