121311302221300 has 36 divisors (see below), whose sum is σ = 269666148410316. Its totient is φ = 47340995987200.

The previous prime is 121311302221297. The next prime is 121311302221337. The reversal of 121311302221300 is 3122203113121.

It can be written as a sum of positive squares in 6 ways, for example, as 24184009340176 + 97127292881124 = 4917724^2 + 9855318^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14794057147 + ... + 14794065346.

It is an arithmetic number, because the mean of its divisors is an integer number (7490726344731).

Almost surely, 2^{121311302221300} is an apocalyptic number.

121311302221300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121311302221300 is an abundant number, since it is smaller than the sum of its proper divisors (148354846189016).

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

121311302221300 is a wasteful number, since it uses less digits than its factorization.

121311302221300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29588122548 (or 29588122541 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121311302221300 its reverse (3122203113121), we get a palindrome (124433505334421).

The spelling of 121311302221300 in words is "one hundred twenty-one trillion, three hundred eleven billion, three hundred two million, two hundred twenty-one thousand, three hundred".