11112211101012 has 72 divisors (see below), whose sum is σ = 30273841614240. Its totient is φ = 3163114745280.

The previous prime is 11112211100983. The next prime is 11112211101059. The reversal of 11112211101012 is 21010111221111.

It is a junction number, because it is equal to n+sod(n) for n = 11112211100982 and 11112211101000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34968814 + ... + 35285157.

It is an arithmetic number, because the mean of its divisors is an integer number (420470022420).

Almost surely, 2^{11112211101012} is an apocalyptic number.

11112211101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11112211101012 is an abundant number, since it is smaller than the sum of its proper divisors (19161630513228).

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

11112211101012 is a wasteful number, since it uses less digits than its factorization.

11112211101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70254261 (or 70254252 counting only the distinct ones).

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

Adding to 11112211101012 its reverse (21010111221111), we get a palindrome (32122322322123).

The spelling of 11112211101012 in words is "eleven trillion, one hundred twelve billion, two hundred eleven million, one hundred one thousand, twelve".