102111021101200 has 60 divisors (see below), whose sum is σ = 245330589890880. Its totient is φ = 40842933028480.

The previous prime is 102111021101191. The next prime is 102111021101203. The reversal of 102111021101200 is 2101120111201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102111021101203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6510021 + ... + 15703579.

It is an arithmetic number, because the mean of its divisors is an integer number (4088843164848).

Almost surely, 2^{102111021101200} is an apocalyptic number.

102111021101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111021101200 is an abundant number, since it is smaller than the sum of its proper divisors (143219568789680).

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

102111021101200 is a wasteful number, since it uses less digits than its factorization.

102111021101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9221344 (or 9221333 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102111021101200 its reverse (2101120111201), we get a palindrome (104212141212401).

The spelling of 102111021101200 in words is "one hundred two trillion, one hundred eleven billion, twenty-one million, one hundred one thousand, two hundred".