22321212020213 has 8 divisors (see below), whose sum is σ = 22355724831768. Its totient is φ = 22286700219904.

The previous prime is 22321212020203. The next prime is 22321212020279. The reversal of 22321212020213 is 31202021212322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 448688304964 + 21872523715249 = 669842^2 + 4676807^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22321212020213 is a prime.

It is a super-3 number, since 3×22321212020213³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321212020203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52378445 + ... + 52802877.

It is an arithmetic number, because the mean of its divisors is an integer number (2794465603971).

Almost surely, 2^{22321212020213} is an apocalyptic number.

It is an amenable number.

22321212020213 is a deficient number, since it is larger than the sum of its proper divisors (34512811555).

22321212020213 is an equidigital number, since it uses as much as digits as its factorization.

22321212020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505623.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22321212020213 its reverse (31202021212322), we get a palindrome (53523233232535).

The spelling of 22321212020213 in words is "twenty-two trillion, three hundred twenty-one billion, two hundred twelve million, twenty thousand, two hundred thirteen".