20836122 has 16 divisors (see below), whose sum is σ = 43865760. Its totient is φ = 6579792.

The previous prime is 20836121. The next prime is 20836187. The reversal of 20836122 is 22163802.

It is a junction number, because it is equal to n+sod(n) for n = 20836092 and 20836101.

It is not an unprimeable number, because it can be changed into a prime (20836121) 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, 91273 + ... + 91500.

It is an arithmetic number, because the mean of its divisors is an integer number (2741610).

Almost surely, 2^20836122 is an apocalyptic number.

20836122 is an abundant number, since it is smaller than the sum of its proper divisors (23029638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20836122 is a wasteful number, since it uses less digits than its factorization.

20836122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182797.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20836122 is about 4564.6601187821. The cubic root of 20836122 is about 275.1728808261.

Adding to 20836122 its reverse (22163802), we get a palindrome (42999924).

The spelling of 20836122 in words is "twenty million, eight hundred thirty-six thousand, one hundred twenty-two".