22212001331 has 16 divisors (see below), whose sum is σ = 24536400000. Its totient is φ = 19979388288.

The previous prime is 22212001327. The next prime is 22212001379. The reversal of 22212001331 is 13310021222.

It is a cyclic number.

It is not a de Polignac number, because 22212001331 - 2² = 22212001327 is a prime.

It is a super-2 number, since 2×22212001331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212009331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60545 + ... + 219293.

It is an arithmetic number, because the mean of its divisors is an integer number (1533525000).

Almost surely, 2^22212001331 is an apocalyptic number.

22212001331 is a deficient number, since it is larger than the sum of its proper divisors (2324398669).

22212001331 is a wasteful number, since it uses less digits than its factorization.

22212001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159038.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22212001331 its reverse (13310021222), we get a palindrome (35522022553).

The spelling of 22212001331 in words is "twenty-two billion, two hundred twelve million, one thousand, three hundred thirty-one".