22000001331 has 96 divisors (see below), whose sum is σ = 39316451328. Its totient is φ = 10798455360.

The previous prime is 22000001293. The next prime is 22000001341. The reversal of 22000001331 is 13310000022.

It is a happy number.

It is not a de Polignac number, because 22000001331 - 2⁷ = 22000001203 is a prime.

It is a super-2 number, since 2×22000001331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22000001341) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3083290 + ... + 3090416.

It is an arithmetic number, because the mean of its divisors is an integer number (409546368).

Almost surely, 2^22000001331 is an apocalyptic number.

22000001331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22000001331 is a deficient number, since it is larger than the sum of its proper divisors (17316449997).

22000001331 is a wasteful number, since it uses less digits than its factorization.

22000001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7261 (or 7254 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 22000001331 its reverse (13310000022), we get a palindrome (35310001353).

The spelling of 22000001331 in words is "twenty-two billion, one thousand, three hundred thirty-one".