11111002201212 has 24 divisors (see below), whose sum is σ = 25925769063936. Its totient is φ = 3703653505968.

The previous prime is 11111002201171. The next prime is 11111002201223. The reversal of 11111002201212 is 21210220011111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11111002201191 and 11111002201200.

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, 1899733 + ... + 5082419.

It is an arithmetic number, because the mean of its divisors is an integer number (1080240377664).

Almost surely, 2^{11111002201212} is an apocalyptic number.

11111002201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11111002201212 is an abundant number, since it is smaller than the sum of its proper divisors (14814766862724).

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

11111002201212 is a wasteful number, since it uses less digits than its factorization.

11111002201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473617 (or 3473615 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11111002201212 its reverse (21210220011111), we get a palindrome (32321222212323).

The spelling of 11111002201212 in words is "eleven trillion, one hundred eleven billion, two million, two hundred one thousand, two hundred twelve".