20400002332222 has 16 divisors (see below), whose sum is σ = 31588185715200. Its totient is φ = 9870629704920.

The previous prime is 20400002332189. The next prime is 20400002332277. The reversal of 20400002332222 is 22223320000402.

It is a junction number, because it is equal to n+sod(n) for n = 20400002332193 and 20400002332202.

It is a congruent number.

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, 3829072 + ... + 7447267.

It is an arithmetic number, because the mean of its divisors is an integer number (1974261607200).

Almost surely, 2^{20400002332222} is an apocalyptic number.

20400002332222 is a deficient number, since it is larger than the sum of its proper divisors (11188183382978).

20400002332222 is a wasteful number, since it uses less digits than its factorization.

20400002332222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11305551.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20400002332222 its reverse (22223320000402), we get a palindrome (42623322332624).

The spelling of 20400002332222 in words is "twenty trillion, four hundred billion, two million, three hundred thirty-two thousand, two hundred twenty-two".