22219775 has 12 divisors (see below), whose sum is σ = 27670104. Its totient is φ = 17700000.

The previous prime is 22219763. The next prime is 22219781. The reversal of 22219775 is 57791222.

It is not a de Polignac number, because 22219775 - 2¹⁸ = 21957631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4505 + ... + 8045.

It is an arithmetic number, because the mean of its divisors is an integer number (2305842).

Almost surely, 2^22219775 is an apocalyptic number.

22219775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22219775 is a deficient number, since it is larger than the sum of its proper divisors (5450329).

22219775 is a wasteful number, since it uses less digits than its factorization.

22219775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802 (or 3797 counting only the distinct ones).

The product of its digits is 17640, while the sum is 35.

The square root of 22219775 is about 4713.7856336495. The cubic root of 22219775 is about 281.1339010526.

The spelling of 22219775 in words is "twenty-two million, two hundred nineteen thousand, seven hundred seventy-five".