22101047 has 16 divisors (see below), whose sum is σ = 24268800. Its totient is φ = 20049120.

The previous prime is 22101043. The next prime is 22101049. The reversal of 22101047 is 74010122.

It is a cyclic number.

It is not a de Polignac number, because 22101047 - 2² = 22101043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101041) 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 15 ways as a sum of consecutive naturals, for example, 92354 + ... + 92592.

It is an arithmetic number, because the mean of its divisors is an integer number (1516800).

Almost surely, 2^22101047 is an apocalyptic number.

22101047 is a deficient number, since it is larger than the sum of its proper divisors (2167753).

22101047 is a wasteful number, since it uses less digits than its factorization.

22101047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 22101047 is about 4701.1750658745. The cubic root of 22101047 is about 280.6322744033.

Adding to 22101047 its reverse (74010122), we get a palindrome (96111169).

The spelling of 22101047 in words is "twenty-two million, one hundred one thousand, forty-seven".