22361331 has 8 divisors (see below), whose sum is σ = 30449664. Its totient is φ = 14590280.

The previous prime is 22361329. The next prime is 22361363. The reversal of 22361331 is 13316322.

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 22361331 - 2¹ = 22361329 is a prime.

It is a super-2 number, since 2×22361331² = 1000058248183122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22361298 and 22361307.

It is not an unprimeable number, because it can be changed into a prime (22361321) 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, 79155 + ... + 79436.

It is an arithmetic number, because the mean of its divisors is an integer number (3806208).

Almost surely, 2^22361331 is an apocalyptic number.

22361331 is a deficient number, since it is larger than the sum of its proper divisors (8088333).

22361331 is a wasteful number, since it uses less digits than its factorization.

22361331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158641.

The product of its digits is 648, while the sum is 21.

The square root of 22361331 is about 4728.7769031749. The cubic root of 22361331 is about 281.7296463319.

Adding to 22361331 its reverse (13316322), we get a palindrome (35677653).

The spelling of 22361331 in words is "twenty-two million, three hundred sixty-one thousand, three hundred thirty-one".