111220100020212 has 24 divisors (see below), whose sum is σ = 273172175488800. Its totient is φ = 35122136848416.

The previous prime is 111220100020201. The next prime is 111220100020247. The reversal of 111220100020212 is 212020001022111.

It is a super-2 number, since 2×111220100020212² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111220100020191 and 111220100020200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243903727887 + ... + 243903728342.

It is an arithmetic number, because the mean of its divisors is an integer number (11382173978700).

Almost surely, 2^{111220100020212} is an apocalyptic number.

111220100020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111220100020212 is an abundant number, since it is smaller than the sum of its proper divisors (161952075468588).

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

111220100020212 is a wasteful number, since it uses less digits than its factorization.

111220100020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487807456255 (or 487807456253 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111220100020212 its reverse (212020001022111), we get a palindrome (323240101042323).

The spelling of 111220100020212 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred million, twenty thousand, two hundred twelve".