20211422 has 24 divisors (see below), whose sum is σ = 38475000. Its totient is φ = 7874160.

The previous prime is 20211407. The next prime is 20211461. The reversal of 20211422 is 22411202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20211397 and 20211406.

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, 8297 + ... + 10452.

It is an arithmetic number, because the mean of its divisors is an integer number (1603125).

Almost surely, 2^20211422 is an apocalyptic number.

20211422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20211422 is a deficient number, since it is larger than the sum of its proper divisors (18263578).

20211422 is a wasteful number, since it uses less digits than its factorization.

20211422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18776 (or 18769 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20211422 is about 4495.7115120968. The cubic root of 20211422 is about 272.3948903039.

Adding to 20211422 its reverse (22411202), we get a palindrome (42622624).

It can be divided in two parts, 2021 and 1422, that added together give a palindrome (3443).

The spelling of 20211422 in words is "twenty million, two hundred eleven thousand, four hundred twenty-two".