11121211101012 has 24 divisors (see below), whose sum is σ = 25994938281312. Its totient is φ = 3700578122400.

The previous prime is 11121211100971. The next prime is 11121211101071. The reversal of 11121211101012 is 21010111212111.

It is a junction number, because it is equal to n+sod(n) for n = 11121211100982 and 11121211101000.

It is a congruent number.

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, 811523439 + ... + 811537142.

It is an arithmetic number, because the mean of its divisors is an integer number (1083122428388).

Almost surely, 2^{11121211101012} is an apocalyptic number.

11121211101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11121211101012 is an abundant number, since it is smaller than the sum of its proper divisors (14873727180300).

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

11121211101012 is a wasteful number, since it uses less digits than its factorization.

11121211101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623061159 (or 1623061157 counting only the distinct ones).

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

Adding to 11121211101012 its reverse (21010111212111), we get a palindrome (32131322313123).

The spelling of 11121211101012 in words is "eleven trillion, one hundred twenty-one billion, two hundred eleven million, one hundred one thousand, twelve".