22220727 has 8 divisors (see below), whose sum is σ = 30186864. Its totient is φ = 14534208.

The previous prime is 22220713. The next prime is 22220741. The reversal of 22220727 is 72702222.

It is an interprime number because it is at equal distance from previous prime (22220713) and next prime (22220741).

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

It is not a de Polignac number, because 22220727 - 2¹⁵ = 22187959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22220697 and 22220706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220777) 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, 69718 + ... + 70035.

It is an arithmetic number, because the mean of its divisors is an integer number (3773358).

Almost surely, 2^22220727 is an apocalyptic number.

22220727 is a deficient number, since it is larger than the sum of its proper divisors (7966137).

22220727 is a wasteful number, since it uses less digits than its factorization.

22220727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139809.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 22220727 is about 4713.8866129766. The cubic root of 22220727 is about 281.1379160295.

Adding to 22220727 its reverse (72702222), we get a palindrome (94922949).

The spelling of 22220727 in words is "twenty-two million, two hundred twenty thousand, seven hundred twenty-seven".