121010220211000 has 128 divisors (see below), whose sum is σ = 283787806685760. Its totient is φ = 48297557952000.

The previous prime is 121010220210973. The next prime is 121010220211033. The reversal of 121010220211000 is 112022010121.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 830830182 + ... + 830975818.

Almost surely, 2^{121010220211000} is an apocalyptic number.

121010220211000 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 121010220211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141893903342880).

121010220211000 is an abundant number, since it is smaller than the sum of its proper divisors (162777586474760).

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

121010220211000 is a wasteful number, since it uses less digits than its factorization.

121010220211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147482 (or 147468 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121010220211000 its reverse (112022010121), we get a palindrome (121122242221121).

The spelling of 121010220211000 in words is "one hundred twenty-one trillion, ten billion, two hundred twenty million, two hundred eleven thousand".