1211110030200 has 192 divisors, whose sum is σ = 4321660896000. Its totient is φ = 274833469440.

The previous prime is 1211110030187. The next prime is 1211110030217. The reversal of 1211110030200 is 20300111121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 453465 + ... + 1621064.

It is an arithmetic number, because the mean of its divisors is an integer number (22508650500).

Almost surely, 2^{1211110030200} is an apocalyptic number.

1211110030200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211110030200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2160830448000).

1211110030200 is an abundant number, since it is smaller than the sum of its proper divisors (3110550865800).

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

1211110030200 is a wasteful number, since it uses less digits than its factorization.

1211110030200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074694 (or 2074685 counting only the distinct ones).

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

Adding to 1211110030200 its reverse (20300111121), we get a palindrome (1231410141321).

The spelling of 1211110030200 in words is "one trillion, two hundred eleven billion, one hundred ten million, thirty thousand, two hundred".