220111112121100 has 36 divisors (see below), whose sum is σ = 477718767233008. Its totient is φ = 88030130760000.

The previous prime is 220111112121059. The next prime is 220111112121101. The reversal of 220111112121100 is 1121211111022.

It is not an unprimeable number, because it can be changed into a prime (220111112121101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178307931 + ... + 179538130.

Almost surely, 2^{220111112121100} is an apocalyptic number.

220111112121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220111112121100 is an abundant number, since it is smaller than the sum of its proper divisors (257607655111908).

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

220111112121100 is a wasteful number, since it uses less digits than its factorization.

220111112121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357852226 (or 357852219 counting only the distinct ones).

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

Adding to 220111112121100 its reverse (1121211111022), we get a palindrome (221232323232122).

The spelling of 220111112121100 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twelve million, one hundred twenty-one thousand, one hundred".