111020101212 has 48 divisors (see below), whose sum is σ = 270019111040. Its totient is φ = 35469099072.

The previous prime is 111020101207. The next prime is 111020101277. The reversal of 111020101212 is 212101020111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1836262 + ... + 1895757.

Almost surely, 2^111020101212 is an apocalyptic number.

111020101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111020101212 is an abundant number, since it is smaller than the sum of its proper divisors (158999009828).

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

111020101212 is a wasteful number, since it uses less digits than its factorization.

111020101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732130 (or 3732128 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111020101212 its reverse (212101020111), we get a palindrome (323121121323).

The spelling of 111020101212 in words is "one hundred eleven billion, twenty million, one hundred one thousand, two hundred twelve".