220121111122 has 64 divisors (see below), whose sum is σ = 383064422400. Its totient is φ = 93813612480.

The previous prime is 220121111099. The next prime is 220121111137. The reversal of 220121111122 is 221111121022.

It is a junction number, because it is equal to n+sod(n) for n = 220121111096 and 220121111105.

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 31 ways as a sum of consecutive naturals, for example, 70799704 + ... + 70802812.

It is an arithmetic number, because the mean of its divisors is an integer number (5985381600).

Almost surely, 2^220121111122 is an apocalyptic number.

220121111122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220121111122 is a deficient number, since it is larger than the sum of its proper divisors (162943311278).

220121111122 is a wasteful number, since it uses less digits than its factorization.

220121111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220121111122 its reverse (221111121022), we get a palindrome (441232232144).

The spelling of 220121111122 in words is "two hundred twenty billion, one hundred twenty-one million, one hundred eleven thousand, one hundred twenty-two".