111020202112 has 16 divisors (see below), whose sum is σ = 221173059150. Its totient is φ = 55510100992.

The previous prime is 111020202109. The next prime is 111020202131. The reversal of 111020202112 is 211202020111.

It can be written as a sum of positive squares in only one way, i.e., 110686628416 + 333573696 = 332696^2 + 18264^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 111020202092 and 111020202101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433672537 + ... + 433672792.

Almost surely, 2^111020202112 is an apocalyptic number.

It is an amenable number.

111020202112 is a deficient number, since it is larger than the sum of its proper divisors (110152857038).

111020202112 is an frugal number, since it uses more digits than its factorization.

111020202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867345343 (or 867345331 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111020202112 its reverse (211202020111), we get a palindrome (322222222223).

The spelling of 111020202112 in words is "one hundred eleven billion, twenty million, two hundred two thousand, one hundred twelve".