121201030010321 has 8 divisors (see below), whose sum is σ = 122273873499624. Its totient is φ = 120128191223040.

The previous prime is 121201030010317. The next prime is 121201030010387. The reversal of 121201030010321 is 123010030102121.

It can be written as a sum of positive squares in 4 ways, for example, as 26062250214400 + 95138779795921 = 5105120^2 + 9753911^2 .

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 121201030010321 - 2² = 121201030010317 is a prime.

It is a super-2 number, since 2×121201030010321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121201030010321.

It is not an unprimeable number, because it can be changed into a prime (121201030010521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69135191 + ... + 70866611.

It is an arithmetic number, because the mean of its divisors is an integer number (15284234187453).

Almost surely, 2^{121201030010321} is an apocalyptic number.

It is an amenable number.

121201030010321 is a deficient number, since it is larger than the sum of its proper divisors (1072843489303).

121201030010321 is a wasteful number, since it uses less digits than its factorization.

121201030010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351011.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121201030010321 its reverse (123010030102121), we get a palindrome (244211060112442).

The spelling of 121201030010321 in words is "one hundred twenty-one trillion, two hundred one billion, thirty million, ten thousand, three hundred twenty-one".