20022406271 has 4 divisors (see below), whose sum is σ = 22882750032. Its totient is φ = 17162062512.

The previous prime is 20022406231. The next prime is 20022406279. The reversal of 20022406271 is 17260422002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17260422002 = 2 ⋅8630211001.

It is a de Polignac number, because none of the positive numbers 2^k-20022406271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20022406271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022406279) 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, 1430171870 + ... + 1430171883.

It is an arithmetic number, because the mean of its divisors is an integer number (5720687508).

Almost surely, 2^20022406271 is an apocalyptic number.

20022406271 is a deficient number, since it is larger than the sum of its proper divisors (2860343761).

20022406271 is an equidigital number, since it uses as much as digits as its factorization.

20022406271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860343760.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 20022406271 its reverse (17260422002), we get a palindrome (37282828273).

The spelling of 20022406271 in words is "twenty billion, twenty-two million, four hundred six thousand, two hundred seventy-one".