121012301344421 has 4 divisors (see below), whose sum is σ = 122996109563244. Its totient is φ = 119028493125600.

The previous prime is 121012301344399. The next prime is 121012301344453. The reversal of 121012301344421 is 124443103210121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10125314920900 + 110886986423521 = 3182030^2 + 10530289^2 .

It is a cyclic number.

It is not a de Polignac number, because 121012301344421 - 2¹⁰ = 121012301343397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012301344021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991904109320 + ... + 991904109441.

It is an arithmetic number, because the mean of its divisors is an integer number (30749027390811).

Almost surely, 2^{121012301344421} is an apocalyptic number.

It is an amenable number.

121012301344421 is a deficient number, since it is larger than the sum of its proper divisors (1983808218823).

121012301344421 is an equidigital number, since it uses as much as digits as its factorization.

121012301344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983808218822.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 121012301344421 its reverse (124443103210121), we get a palindrome (245455404554542).

The spelling of 121012301344421 in words is "one hundred twenty-one trillion, twelve billion, three hundred one million, three hundred forty-four thousand, four hundred twenty-one".