11112112111020 has 24 divisors (see below), whose sum is σ = 31113913911024. Its totient is φ = 2963229896256.

The previous prime is 11112112111007. The next prime is 11112112111069. The reversal of 11112112111020 is 2011121121111.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 92600934199 + ... + 92600934318.

It is an arithmetic number, because the mean of its divisors is an integer number (1296413079626).

Almost surely, 2^{11112112111020} is an apocalyptic number.

11112112111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112112111020 is an abundant number, since it is smaller than the sum of its proper divisors (20001801800004).

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

11112112111020 is a wasteful number, since it uses less digits than its factorization.

11112112111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185201868529 (or 185201868527 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11112112111020 its reverse (2011121121111), we get a palindrome (13123233232131).

The spelling of 11112112111020 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, one hundred eleven thousand, twenty".