121020221012000 has 48 divisors (see below), whose sum is σ = 297346683036312. Its totient is φ = 48408088403200.

The previous prime is 121020221011951. The next prime is 121020221012011. The reversal of 121020221012000 is 210122020121.

It can be written as a sum of positive squares in 4 ways, for example, as 21326625941776 + 99693595070224 = 4618076^2 + 9984668^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15127523627 + ... + 15127531626.

Almost surely, 2^{121020221012000} is an apocalyptic number.

121020221012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020221012000 is an abundant number, since it is smaller than the sum of its proper divisors (176326462024312).

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

121020221012000 is an equidigital number, since it uses as much as digits as its factorization.

121020221012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30255055278 (or 30255055260 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121020221012000 its reverse (210122020121), we get a palindrome (121230343032121).

The spelling of 121020221012000 in words is "one hundred twenty-one trillion, twenty billion, two hundred twenty-one million, twelve thousand".