121041000000 has 392 divisors, whose sum is σ = 444891180320. Its totient is φ = 32270400000.

The previous prime is 121040999999. The next prime is 121041000019. The reversal of 121041000000 is 140121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 26997759 + ... + 27002241.

Almost surely, 2^121041000000 is an apocalyptic number.

121041000000 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 121041000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222445590160).

121041000000 is an abundant number, since it is smaller than the sum of its proper divisors (323850180320).

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

121041000000 is an frugal number, since it uses more digits than its factorization.

121041000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534 (or 4493 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 121041000000 its reverse (140121), we get a palindrome (121041140121).

The spelling of 121041000000 in words is "one hundred twenty-one billion, forty-one million", and thus it is an aban number.