20042211 has 8 divisors (see below), whose sum is σ = 30540544. Its totient is φ = 11452680.

The previous prime is 20042173. The next prime is 20042249. The reversal of 20042211 is 11224002.

It is an interprime number because it is at equal distance from previous prime (20042173) and next prime (20042249).

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

It is not a de Polignac number, because 20042211 - 2¹⁰ = 20041187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20042261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477175 + ... + 477216.

It is an arithmetic number, because the mean of its divisors is an integer number (3817568).

Almost surely, 2^20042211 is an apocalyptic number.

20042211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20042211 is a deficient number, since it is larger than the sum of its proper divisors (10498333).

20042211 is an equidigital number, since it uses as much as digits as its factorization.

20042211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954401.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20042211 is about 4476.8528007966. The cubic root of 20042211 is about 271.6325912739.

Adding to 20042211 its reverse (11224002), we get a palindrome (31266213).

The spelling of 20042211 in words is "twenty million, forty-two thousand, two hundred eleven".