220020111121100 has 36 divisors (see below), whose sum is σ = 482079016311984. Its totient is φ = 87153597410880.

The previous prime is 220020111121067. The next prime is 220020111121117. The reversal of 220020111121100 is 1121111020022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10680577619 + ... + 10680598218.

It is an arithmetic number, because the mean of its divisors is an integer number (13391083786444).

Almost surely, 2^{220020111121100} is an apocalyptic number.

220020111121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220020111121100 is an abundant number, since it is smaller than the sum of its proper divisors (262058905190884).

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

220020111121100 is a wasteful number, since it uses less digits than its factorization.

220020111121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21361175954 (or 21361175947 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220020111121100 its reverse (1121111020022), we get a palindrome (221141222141122).

The spelling of 220020111121100 in words is "two hundred twenty trillion, twenty billion, one hundred eleven million, one hundred twenty-one thousand, one hundred".