22021111213331 has 8 divisors (see below), whose sum is σ = 22133075446944. Its totient is φ = 21909148817920.

The previous prime is 22021111213259. The next prime is 22021111213337. The reversal of 22021111213331 is 13331211112022.

It is a happy number.

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 22021111213331 - 2¹⁰ = 22021111212307 is a prime.

It is a super-2 number, since 2×22021111213331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021111213297 and 22021111213306.

It is not an unprimeable number, because it can be changed into a prime (22021111213337) 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, 28041971 + ... + 28816563.

It is an arithmetic number, because the mean of its divisors is an integer number (2766634430868).

Almost surely, 2^{22021111213331} is an apocalyptic number.

22021111213331 is a deficient number, since it is larger than the sum of its proper divisors (111964233613).

22021111213331 is a wasteful number, since it uses less digits than its factorization.

22021111213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919101.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 22021111213331 its reverse (13331211112022), we get a palindrome (35352322325353).

The spelling of 22021111213331 in words is "twenty-two trillion, twenty-one billion, one hundred eleven million, two hundred thirteen thousand, three hundred thirty-one".