11212212220200 has 144 divisors (see below), whose sum is σ = 38530028771520. Its totient is φ = 2920390139520.

The previous prime is 11212212220093. The next prime is 11212212220241. The reversal of 11212212220200 is 202221221211.

It is a happy number.

11212212220200 is a `hidden beast` number, since 1 + 1 + 21 + 221 + 2 + 220 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 72352912 + ... + 72507711.

Almost surely, 2^{11212212220200} is an apocalyptic number.

11212212220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212212220200 is an abundant number, since it is smaller than the sum of its proper divisors (27317816551320).

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

11212212220200 is a wasteful number, since it uses less digits than its factorization.

11212212220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144860688 (or 144860676 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11212212220200 its reverse (202221221211), we get a palindrome (11414433441411).

The spelling of 11212212220200 in words is "eleven trillion, two hundred twelve billion, two hundred twelve million, two hundred twenty thousand, two hundred".