20221003 has 8 divisors (see below), whose sum is σ = 22093056. Its totient is φ = 18354600.

The previous prime is 20220983. The next prime is 20221009. The reversal of 20221003 is 30012202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20221003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10450 + ... + 12232.

It is an arithmetic number, because the mean of its divisors is an integer number (2761632).

Almost surely, 2^20221003 is an apocalyptic number.

20221003 is a deficient number, since it is larger than the sum of its proper divisors (1872053).

20221003 is a wasteful number, since it uses less digits than its factorization.

20221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20221003 is about 4496.7769568881. The cubic root of 20221003 is about 272.4379254281.

Adding to 20221003 its reverse (30012202), we get a palindrome (50233205).

It can be divided in two parts, 2022 and 1003, that added together give a square (3025 = 55²).

The spelling of 20221003 in words is "twenty million, two hundred twenty-one thousand, three".