121001223000 has 512 divisors, whose sum is σ = 463193303040. Its totient is φ = 25668403200.

The previous prime is 121001222977. The next prime is 121001223059. The reversal of 121001223000 is 322100121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26058679 + ... + 26063321.

It is an arithmetic number, because the mean of its divisors is an integer number (904674420).

Almost surely, 2^121001223000 is an apocalyptic number.

121001223000 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 121001223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231596651520).

121001223000 is an abundant number, since it is smaller than the sum of its proper divisors (342192080040).

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

121001223000 is a wasteful number, since it uses less digits than its factorization.

121001223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764 (or 4750 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 121001223000 its reverse (322100121), we get a palindrome (121323323121).

The spelling of 121001223000 in words is "one hundred twenty-one billion, one million, two hundred twenty-three thousand".