1011112111218 has 64 divisors (see below), whose sum is σ = 2212189056000. Its totient is φ = 305547735360.

The previous prime is 1011112111213. The next prime is 1011112111223. The reversal of 1011112111218 is 8121112111101.

It is an interprime number because it is at equal distance from previous prime (1011112111213) and next prime (1011112111223).

It is a junction number, because it is equal to n+sod(n) for n = 1011112111194 and 1011112111203.

It is not an unprimeable number, because it can be changed into a prime (1011112111211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43761433 + ... + 43784531.

It is an arithmetic number, because the mean of its divisors is an integer number (34565454000).

Almost surely, 2^{1011112111218} is an apocalyptic number.

1011112111218 is an abundant number, since it is smaller than the sum of its proper divisors (1201076944782).

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

1011112111218 is a wasteful number, since it uses less digits than its factorization.

1011112111218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24927.

The product of its (nonzero) digits is 32, while the sum is 21.

Adding to 1011112111218 its reverse (8121112111101), we get a palindrome (9132224222319).

The spelling of 1011112111218 in words is "one trillion, eleven billion, one hundred twelve million, one hundred eleven thousand, two hundred eighteen".