121323222300000 has 576 divisors, whose sum is σ = 455360055091200. Its totient is φ = 27704989440000.

The previous prime is 121323222299987. The next prime is 121323222300041. The reversal of 121323222300000 is 3222323121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 121323222300000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2282673426 + ... + 2282726574.

It is an arithmetic number, because the mean of its divisors is an integer number (790555651200).

Almost surely, 2^{121323222300000} is an apocalyptic number.

121323222300000 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 121323222300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227680027545600).

121323222300000 is an abundant number, since it is smaller than the sum of its proper divisors (334036832791200).

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

121323222300000 is an equidigital number, since it uses as much as digits as its factorization.

121323222300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54281 (or 54253 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 121323222300000 its reverse (3222323121), we get a palindrome (121326444623121).

The spelling of 121323222300000 in words is "one hundred twenty-one trillion, three hundred twenty-three billion, two hundred twenty-two million, three hundred thousand".