121220341 has 6 divisors (see below), whose sum is σ = 133242326. Its totient is φ = 110200200.

The previous prime is 121220339. The next prime is 121220383. The reversal of 121220341 is 143022121.

It can be written as a sum of positive squares in only one way, i.e., 92640625 + 28579716 = 9625^2 + 5346^2 .

It is not a de Polignac number, because 121220341 - 2¹ = 121220339 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500790 + ... + 501031.

Almost surely, 2^121220341 is an apocalyptic number.

121220341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121220341 is a deficient number, since it is larger than the sum of its proper divisors (12021985).

121220341 is a wasteful number, since it uses less digits than its factorization.

121220341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001843 (or 1001832 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121220341 is about 11010.0109445904. The cubic root of 121220341 is about 494.9087897787.

Adding to 121220341 its reverse (143022121), we get a palindrome (264242462).

The spelling of 121220341 in words is "one hundred twenty-one million, two hundred twenty thousand, three hundred forty-one".