111021212200120 has 32 divisors (see below), whose sum is σ = 249802448674320. Its totient is φ = 44407645551360.

The previous prime is 111021212200103. The next prime is 111021212200127. The reversal of 111021212200120 is 21002212120111.

It is a junction number, because it is equal to n+sod(n) for n = 111021212200094 and 111021212200103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021212200127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24084021 + ... + 28321060.

Almost surely, 2^{111021212200120} is an apocalyptic number.

111021212200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021212200120 is an abundant number, since it is smaller than the sum of its proper divisors (138781236474200).

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

111021212200120 is a wasteful number, since it uses less digits than its factorization.

111021212200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52458055 (or 52458051 counting only the distinct ones).

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

Adding to 111021212200120 its reverse (21002212120111), we get a palindrome (132023424320231).

The spelling of 111021212200120 in words is "one hundred eleven trillion, twenty-one billion, two hundred twelve million, two hundred thousand, one hundred twenty".