20001113123222 has 64 divisors (see below), whose sum is σ = 37973994462720. Its totient is φ = 7674101740800.

The previous prime is 20001113123221. The next prime is 20001113123231. The reversal of 20001113123222 is 22232131110002.

It is a super-2 number, since 2×20001113123222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001113123194 and 20001113123203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001113123221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35430554 + ... + 35990642.

It is an arithmetic number, because the mean of its divisors is an integer number (593343663480).

Almost surely, 2^{20001113123222} is an apocalyptic number.

20001113123222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20001113123222 is a deficient number, since it is larger than the sum of its proper divisors (17972881339498).

20001113123222 is a wasteful number, since it uses less digits than its factorization.

20001113123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563637.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20001113123222 its reverse (22232131110002), we get a palindrome (42233244233224).

The spelling of 20001113123222 in words is "twenty trillion, one billion, one hundred thirteen million, one hundred twenty-three thousand, two hundred twenty-two".