20400220010 has 16 divisors (see below), whose sum is σ = 38653048800. Its totient is φ = 7730609616.

The previous prime is 20400219971. The next prime is 20400220033. The reversal of 20400220010 is 1002200402.

It is a junction number, because it is equal to n+sod(n) for n = 20400219973 and 20400220000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53684600 + ... + 53684979.

It is an arithmetic number, because the mean of its divisors is an integer number (2415815550).

Almost surely, 2^20400220010 is an apocalyptic number.

20400220010 is a deficient number, since it is larger than the sum of its proper divisors (18252828790).

20400220010 is a wasteful number, since it uses less digits than its factorization.

20400220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107369605.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20400220010 its reverse (1002200402), we get a palindrome (21402420412).

The spelling of 20400220010 in words is "twenty billion, four hundred million, two hundred twenty thousand, ten".