11001210121200 has 120 divisors (see below), whose sum is σ = 37951354148848. Its totient is φ = 2707990179840.

The previous prime is 11001210121199. The next prime is 11001210121241. The reversal of 11001210121200 is 212101210011.

It is a tau number, because it is divible by the number of its divisors (120).

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 23 ways as a sum of consecutive naturals, for example, 352587289 + ... + 352618488.

Almost surely, 2^{11001210121200} is an apocalyptic number.

11001210121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001210121200 is an abundant number, since it is smaller than the sum of its proper divisors (26950144027648).

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

11001210121200 is a wasteful number, since it uses less digits than its factorization.

11001210121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705205811 (or 705205800 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11001210121200 its reverse (212101210011), we get a palindrome (11213311331211).

The spelling of 11001210121200 in words is "eleven trillion, one billion, two hundred ten million, one hundred twenty-one thousand, two hundred".