22101331 has 8 divisors (see below), whose sum is σ = 25483104. Its totient is φ = 18775680.

The previous prime is 22101329. The next prime is 22101347. The reversal of 22101331 is 13310122.

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

It is not a de Polignac number, because 22101331 - 2¹ = 22101329 is a prime.

It is a super-2 number, since 2×22101331² = 976937663943122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13180 + ... + 14761.

It is an arithmetic number, because the mean of its divisors is an integer number (3185388).

Almost surely, 2^22101331 is an apocalyptic number.

22101331 is a deficient number, since it is larger than the sum of its proper divisors (3381773).

22101331 is a wasteful number, since it uses less digits than its factorization.

22101331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28061.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 22101331 is about 4701.2052709917. The cubic root of 22101331 is about 280.6334764463.

Adding to 22101331 its reverse (13310122), we get a palindrome (35411453).

The spelling of 22101331 in words is "twenty-two million, one hundred one thousand, three hundred thirty-one".