20221467 has 24 divisors (see below), whose sum is σ = 31606272. Its totient is φ = 11466000.

The previous prime is 20221457. The next prime is 20221469. The reversal of 20221467 is 76412202.

It is not a de Polignac number, because 20221467 - 2⁶ = 20221403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20221469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21742 + ... + 22652.

It is an arithmetic number, because the mean of its divisors is an integer number (1316928).

Almost surely, 2^20221467 is an apocalyptic number.

20221467 is a deficient number, since it is larger than the sum of its proper divisors (11384805).

20221467 is a wasteful number, since it uses less digits than its factorization.

20221467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20221467 is about 4496.8285490999. The cubic root of 20221467 is about 272.4400092388.

Adding to 20221467 its reverse (76412202), we get a palindrome (96633669).

It can be divided in two parts, 202 and 21467, that multiplied together give a palindrome (4336334).

The spelling of 20221467 in words is "twenty million, two hundred twenty-one thousand, four hundred sixty-seven".