121033042444020 has 192 divisors, whose sum is σ = 394066720567296. Its totient is φ = 27183827404800.

The previous prime is 121033042444019. The next prime is 121033042444021. The reversal of 121033042444020 is 20444240330121.

It is an interprime number because it is at equal distance from previous prime (121033042444019) and next prime (121033042444021).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121033042444021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5921169 + ... + 16647111.

It is an arithmetic number, because the mean of its divisors is an integer number (2052430836288).

Almost surely, 2^{121033042444020} is an apocalyptic number.

121033042444020 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 121033042444020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197033360283648).

121033042444020 is an abundant number, since it is smaller than the sum of its proper divisors (273033678123276).

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

121033042444020 is a wasteful number, since it uses less digits than its factorization.

121033042444020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10726430 (or 10726428 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 121033042444020 its reverse (20444240330121), we get a palindrome (141477282774141).

The spelling of 121033042444020 in words is "one hundred twenty-one trillion, thirty-three billion, forty-two million, four hundred forty-four thousand, twenty".