11212111200020 has 24 divisors (see below), whose sum is σ = 23548108595424. Its totient is φ = 4484334941856.

The previous prime is 11212111200007. The next prime is 11212111200061. The reversal of 11212111200020 is 2000211121211.

It is a super-2 number, since 2×11212111200020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212111199968 and 11212111200004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31665674 + ... + 32017793.

It is an arithmetic number, because the mean of its divisors is an integer number (981171191476).

Almost surely, 2^{11212111200020} is an apocalyptic number.

11212111200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212111200020 is an abundant number, since it is smaller than the sum of its proper divisors (12335997395404).

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

11212111200020 is a wasteful number, since it uses less digits than its factorization.

11212111200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63692279 (or 63692277 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11212111200020 its reverse (2000211121211), we get a palindrome (13212322321231).

The spelling of 11212111200020 in words is "eleven trillion, two hundred twelve billion, one hundred eleven million, two hundred thousand, twenty".