20040402422224 has 80 divisors (see below), whose sum is σ = 39344152348800. Its totient is φ = 9887812213248.

The previous prime is 20040402422179. The next prime is 20040402422309. The reversal of 20040402422224 is 42222420404002.

It is a junction number, because it is equal to n+sod(n) for n = 20040402422192 and 20040402422201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685291347 + ... + 685320589.

It is an arithmetic number, because the mean of its divisors is an integer number (491801904360).

Almost surely, 2^{20040402422224} is an apocalyptic number.

It is an amenable number.

20040402422224 is a deficient number, since it is larger than the sum of its proper divisors (19303749926576).

20040402422224 is a wasteful number, since it uses less digits than its factorization.

20040402422224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30812 (or 30806 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20040402422224 its reverse (42222420404002), we get a palindrome (62262822826226).

The spelling of 20040402422224 in words is "twenty trillion, forty billion, four hundred two million, four hundred twenty-two thousand, two hundred twenty-four".