20002226461 has 16 divisors (see below), whose sum is σ = 23054302080. Its totient is φ = 16999107840.

The previous prime is 20002226449. The next prime is 20002226473. The reversal of 20002226461 is 16462220002.

It is an interprime number because it is at equal distance from previous prime (20002226449) and next prime (20002226473).

It is a cyclic number.

It is not a de Polignac number, because 20002226461 - 2⁹ = 20002225949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002226261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811641 + ... + 835921.

It is an arithmetic number, because the mean of its divisors is an integer number (1440893880).

Almost surely, 2^20002226461 is an apocalyptic number.

It is an amenable number.

20002226461 is a deficient number, since it is larger than the sum of its proper divisors (3052075619).

20002226461 is a wasteful number, since it uses less digits than its factorization.

20002226461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25284.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20002226461 its reverse (16462220002), we get a palindrome (36464446463).

The spelling of 20002226461 in words is "twenty billion, two million, two hundred twenty-six thousand, four hundred sixty-one".