20822601 has 16 divisors (see below), whose sum is σ = 28728000. Its totient is φ = 13405248.

The previous prime is 20822591. The next prime is 20822647. The reversal of 20822601 is 10622802.

It is not a de Polignac number, because 20822601 - 2⁹ = 20822089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20822101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15910 + ... + 17168.

It is an arithmetic number, because the mean of its divisors is an integer number (1795500).

Almost surely, 2^20822601 is an apocalyptic number.

It is an amenable number.

20822601 is a deficient number, since it is larger than the sum of its proper divisors (7905399).

20822601 is a wasteful number, since it uses less digits than its factorization.

20822601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20822601 is about 4563.1788262131. The cubic root of 20822601 is about 275.1133461134.

The spelling of 20822601 in words is "twenty million, eight hundred twenty-two thousand, six hundred one".