11001001111212 has 96 divisors (see below), whose sum is σ = 29775220840960. Its totient is φ = 3096088427520.

The previous prime is 11001001111211. The next prime is 11001001111213. The reversal of 11001001111212 is 21211110010011.

It is an interprime number because it is at equal distance from previous prime (11001001111211) and next prime (11001001111213).

It is a super-3 number, since 3×11001001111212³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (11001001111211) 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, 209273412 + ... + 209325972.

Almost surely, 2^{11001001111212} is an apocalyptic number.

11001001111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11001001111212 is an abundant number, since it is smaller than the sum of its proper divisors (18774219729748).

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

11001001111212 is a wasteful number, since it uses less digits than its factorization.

11001001111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89831 (or 89829 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11001001111212 its reverse (21211110010011), we get a palindrome (32212111121223).

The spelling of 11001001111212 in words is "eleven trillion, one billion, one million, one hundred eleven thousand, two hundred twelve".