11212100200000 has 168 divisors, whose sum is σ = 31782271679424. Its totient is φ = 3844148160000.

The previous prime is 11212100199991. The next prime is 11212100200031. The reversal of 11212100200000 is 200121211.

It is a super-2 number, since 2×11212100200000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 11212100200000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2604322 + ... + 5404321.

It is an arithmetic number, because the mean of its divisors is an integer number (189180188568).

Almost surely, 2^{11212100200000} is an apocalyptic number.

11212100200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212100200000 is an abundant number, since it is smaller than the sum of its proper divisors (20570171479424).

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

11212100200000 is an frugal number, since it uses more digits than its factorization.

11212100200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008687 (or 8008657 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11212100200000 its reverse (200121211), we get a palindrome (11212300321211).

The spelling of 11212100200000 in words is "eleven trillion, two hundred twelve billion, one hundred million, two hundred thousand".