20221036 has 36 divisors (see below), whose sum is σ = 39884040. Its totient is φ = 8958400.

The previous prime is 20221027. The next prime is 20221049. The reversal of 20221036 is 63012202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19335 + ... + 20353.

It is an arithmetic number, because the mean of its divisors is an integer number (1107890).

Almost surely, 2^20221036 is an apocalyptic number.

It is an amenable number.

20221036 is a deficient number, since it is larger than the sum of its proper divisors (19663004).

20221036 is a wasteful number, since it uses less digits than its factorization.

20221036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20221036 is about 4496.7806261814. The cubic root of 20221036 is about 272.4380736312.

Adding to 20221036 its reverse (63012202), we get a palindrome (83233238).

The spelling of 20221036 in words is "twenty million, two hundred twenty-one thousand, thirty-six".