21062422 has 16 divisors (see below), whose sum is σ = 33611760. Its totient is φ = 9864448.

The previous prime is 21062413. The next prime is 21062429. The reversal of 21062422 is 22426012.

It is a self number, because there is not a number n which added to its sum of digits gives 21062422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21062429) 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, 6354 + ... + 9082.

It is an arithmetic number, because the mean of its divisors is an integer number (2100735).

Almost surely, 2^21062422 is an apocalyptic number.

21062422 is a deficient number, since it is larger than the sum of its proper divisors (12549338).

21062422 is a wasteful number, since it uses less digits than its factorization.

21062422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 21062422 is about 4589.3814398021. The cubic root of 21062422 is about 276.1655084455.

Adding to 21062422 its reverse (22426012), we get a palindrome (43488434).

The spelling of 21062422 in words is "twenty-one million, sixty-two thousand, four hundred twenty-two".