121012000012000 has 96 divisors (see below), whose sum is σ = 297333208789344. Its totient is φ = 48403705216000.

The previous prime is 121012000011979. The next prime is 121012000012061. The reversal of 121012000012000 is 210000210121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189733635 + ... + 190370365.

It is an arithmetic number, because the mean of its divisors is an integer number (3097220924889).

Almost surely, 2^{121012000012000} is an apocalyptic number.

121012000012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012000012000 is an abundant number, since it is smaller than the sum of its proper divisors (176321208777344).

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

121012000012000 is an equidigital number, since it uses as much as digits as its factorization.

121012000012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684269 (or 684251 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121012000012000 its reverse (210000210121), we get a palindrome (121222000222121).

The spelling of 121012000012000 in words is "one hundred twenty-one trillion, twelve billion, twelve thousand".