20211122222120 has 64 divisors (see below), whose sum is σ = 47452865040000. Its totient is φ = 7732842734848.

The previous prime is 20211122222119. The next prime is 20211122222167. The reversal of 20211122222120 is 2122222111202.

It is a super-2 number, since 2×20211122222120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20211122222092 and 20211122222101.

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, 103263311 + ... + 103458849.

It is an arithmetic number, because the mean of its divisors is an integer number (741451016250).

Almost surely, 2^{20211122222120} is an apocalyptic number.

20211122222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211122222120 is an abundant number, since it is smaller than the sum of its proper divisors (27241742817880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211122222120 is a wasteful number, since it uses less digits than its factorization.

20211122222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307922 (or 307918 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20211122222120 its reverse (2122222111202), we get a palindrome (22333344333322).

The spelling of 20211122222120 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty".