121000430412240 has 80 divisors (see below), whose sum is σ = 375122047574976. Its totient is φ = 32264999654400.

The previous prime is 121000430412203. The next prime is 121000430412259. The reversal of 121000430412240 is 42214034000121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×121000430412240² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 121000430412240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9562126 + ... + 18260205.

Almost surely, 2^{121000430412240} is an apocalyptic number.

121000430412240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121000430412240 is an abundant number, since it is smaller than the sum of its proper divisors (254121617162736).

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

121000430412240 is a wasteful number, since it uses less digits than its factorization.

121000430412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27840468 (or 27840462 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121000430412240 its reverse (42214034000121), we get a palindrome (163214464412361).

The spelling of 121000430412240 in words is "one hundred twenty-one trillion, four hundred thirty million, four hundred twelve thousand, two hundred forty".