11112112211012 has 6 divisors (see below), whose sum is σ = 19446196369278. Its totient is φ = 5556056105504.

The previous prime is 11112112211009. The next prime is 11112112211021. The reversal of 11112112211012 is 21011221121111.

It can be written as a sum of positive squares in only one way, i.e., 7473082885636 + 3639029325376 = 2733694^2 + 1907624^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389014026373 + ... + 1389014026380.

It is an arithmetic number, because the mean of its divisors is an integer number (3241032728213).

Almost surely, 2^{11112112211012} is an apocalyptic number.

It is an amenable number.

11112112211012 is a deficient number, since it is larger than the sum of its proper divisors (8334084158266).

11112112211012 is a wasteful number, since it uses less digits than its factorization.

11112112211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778028052757 (or 2778028052755 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11112112211012 its reverse (21011221121111), we get a palindrome (32123333332123).

The spelling of 11112112211012 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, two hundred eleven thousand, twelve".