20402422402224 has 20 divisors (see below), whose sum is σ = 52706257872536. Its totient is φ = 6800807467392.

The previous prime is 20402422402169. The next prime is 20402422402249. The reversal of 20402422402224 is 42220422420402.

It is a junction number, because it is equal to n+sod(n) for n = 20402422402191 and 20402422402200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212525233309 + ... + 212525233404.

Almost surely, 2^{20402422402224} is an apocalyptic number.

20402422402224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20402422402224 is an abundant number, since it is smaller than the sum of its proper divisors (32303835470312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20402422402224 is a wasteful number, since it uses less digits than its factorization.

20402422402224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425050466724 (or 425050466718 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 20402422402224 its reverse (42220422420402), we get a palindrome (62622844822626).

The spelling of 20402422402224 in words is "twenty trillion, four hundred two billion, four hundred twenty-two million, four hundred two thousand, two hundred twenty-four".