1111001212200 has 288 divisors, whose sum is σ = 3796663560480. Its totient is φ = 268551360000.

The previous prime is 1111001212129. The next prime is 1111001212231. The reversal of 1111001212200 is 22121001111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 25170150 + ... + 25214250.

It is an arithmetic number, because the mean of its divisors is an integer number (13182859585).

Almost surely, 2^{1111001212200} is an apocalyptic number.

1111001212200 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 1111001212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1898331780240).

1111001212200 is an abundant number, since it is smaller than the sum of its proper divisors (2685662348280).

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

1111001212200 is a wasteful number, since it uses less digits than its factorization.

1111001212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44489 (or 44469 counting only the distinct ones).

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

Adding to 1111001212200 its reverse (22121001111), we get a palindrome (1133122213311).

The spelling of 1111001212200 in words is "one trillion, one hundred eleven billion, one million, two hundred twelve thousand, two hundred".