121112200220000 has 120 divisors (see below), whose sum is σ = 325040923540872. Its totient is φ = 44040800000000.

The previous prime is 121112200219999. The next prime is 121112200220009. The reversal of 121112200220000 is 22002211121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112200220009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 275035001 + ... + 275475000.

Almost surely, 2^{121112200220000} is an apocalyptic number.

121112200220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112200220000 is an abundant number, since it is smaller than the sum of its proper divisors (203928723320872).

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

121112200220000 is an equidigital number, since it uses as much as digits as its factorization.

121112200220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550510042 (or 550510019 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121112200220000 its reverse (22002211121), we get a palindrome (121134202431121).

The spelling of 121112200220000 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred million, two hundred twenty thousand".