121031003012221 has 8 divisors (see below), whose sum is σ = 122114492537400. Its totient is φ = 119947731359232.

The previous prime is 121031003012209. The next prime is 121031003012263. The reversal of 121031003012221 is 122210300130121.

It can be written as a sum of positive squares in 4 ways, for example, as 13502170720900 + 107528832291321 = 3674530^2 + 10369611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121031003012221 - 2⁷ = 121031003012093 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 (121031003012281) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 53351946 + ... + 55574203.

It is an arithmetic number, because the mean of its divisors is an integer number (15264311567175).

Almost surely, 2^{121031003012221} is an apocalyptic number.

It is an amenable number.

121031003012221 is a deficient number, since it is larger than the sum of its proper divisors (1083489525179).

121031003012221 is a wasteful number, since it uses less digits than its factorization.

121031003012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108936095.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121031003012221 its reverse (122210300130121), we get a palindrome (243241303142342).

The spelling of 121031003012221 in words is "one hundred twenty-one trillion, thirty-one billion, three million, twelve thousand, two hundred twenty-one".