20234420211 has 4 divisors (see below), whose sum is σ = 26979226952. Its totient is φ = 13489613472.

The previous prime is 20234420209. The next prime is 20234420263. The reversal of 20234420211 is 11202443202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20234420211 - 2¹ = 20234420209 is a prime.

It is a super-2 number, since 2×20234420211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20234420201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3372403366 + ... + 3372403371.

It is an arithmetic number, because the mean of its divisors is an integer number (6744806738).

Almost surely, 2^20234420211 is an apocalyptic number.

20234420211 is a deficient number, since it is larger than the sum of its proper divisors (6744806741).

20234420211 is an equidigital number, since it uses as much as digits as its factorization.

20234420211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744806740.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20234420211 its reverse (11202443202), we get a palindrome (31436863413).

The spelling of 20234420211 in words is "twenty billion, two hundred thirty-four million, four hundred twenty thousand, two hundred eleven".