121111102210000 has 100 divisors (see below), whose sum is σ = 335110959691552. Its totient is φ = 41523806448000.

The previous prime is 121111102209989. The next prime is 121111102210013. The reversal of 121111102210000 is 12201111121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 865009302 + ... + 865149301.

Almost surely, 2^{121111102210000} is an apocalyptic number.

121111102210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121111102210000 is an abundant number, since it is smaller than the sum of its proper divisors (213999857481552).

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

121111102210000 is an equidigital number, since it uses as much as digits as its factorization.

121111102210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730158638 (or 1730158617 counting only the distinct ones).

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

Adding to 121111102210000 its reverse (12201111121), we get a palindrome (121123303321121).

The spelling of 121111102210000 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred two million, two hundred ten thousand".