20221213013333 has 8 divisors (see below), whose sum is σ = 20248581026520. Its totient is φ = 20193847787520.

The previous prime is 20221213013249. The next prime is 20221213013341. The reversal of 20221213013333 is 33331031212202.

It can be written as a sum of positive squares in 4 ways, for example, as 556662225604 + 19664550787729 = 746098^2 + 4434473^2 .

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 20221213013333 - 2⁸ = 20221213013077 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 (20221213013363) 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, 14032541 + ... + 15406317.

It is an arithmetic number, because the mean of its divisors is an integer number (2531072628315).

Almost surely, 2^{20221213013333} is an apocalyptic number.

It is an amenable number.

20221213013333 is a deficient number, since it is larger than the sum of its proper divisors (27368013187).

20221213013333 is a wasteful number, since it uses less digits than its factorization.

20221213013333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393687.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20221213013333 its reverse (33331031212202), we get a palindrome (53552244225535).

The spelling of 20221213013333 in words is "twenty trillion, two hundred twenty-one billion, two hundred thirteen million, thirteen thousand, three hundred thirty-three".