11101210111012 has 18 divisors (see below), whose sum is σ = 22598892012102. Its totient is φ = 4757661476064.

The previous prime is 11101210111009. The next prime is 11101210111067. The reversal of 11101210111012 is 21011101210111.

It can be written as a sum of positive squares in only one way, i.e., 6692444824576 + 4408765286436 = 2586976^2 + 2099706^2 .

It is a super-2 number, since 2×11101210111012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11101210110983 and 11101210111001.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28319413353 + ... + 28319413744.

Almost surely, 2^{11101210111012} is an apocalyptic number.

It is an amenable number.

11101210111012 is an abundant number, since it is smaller than the sum of its proper divisors (11497681901090).

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

11101210111012 is a wasteful number, since it uses less digits than its factorization.

11101210111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56638827115 (or 56638827106 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11101210111012 its reverse (21011101210111), we get a palindrome (32112311321123).

The spelling of 11101210111012 in words is "eleven trillion, one hundred one billion, two hundred ten million, one hundred eleven thousand, twelve".