20111201220022 has 32 divisors (see below), whose sum is σ = 35446915278720. Its totient is φ = 8458922949120.

The previous prime is 20111201220013. The next prime is 20111201220049. The reversal of 20111201220022 is 22002210211102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20111201219978 and 20111201220005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559434603 + ... + 559470550.

It is an arithmetic number, because the mean of its divisors is an integer number (1107716102460).

Almost surely, 2^{20111201220022} is an apocalyptic number.

20111201220022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20111201220022 is a deficient number, since it is larger than the sum of its proper divisors (15335714058698).

20111201220022 is a wasteful number, since it uses less digits than its factorization.

20111201220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118905228.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20111201220022 its reverse (22002210211102), we get a palindrome (42113411431124).

The spelling of 20111201220022 in words is "twenty trillion, one hundred eleven billion, two hundred one million, two hundred twenty thousand, twenty-two".