121201021201 has 8 divisors (see below), whose sum is σ = 130995386984. Its totient is φ = 111473971200.

The previous prime is 121201021189. The next prime is 121201021231. The reversal of 121201021201 is 102120102121.

It can be written as a sum of positive squares in 4 ways, for example, as 8003091600 + 113197929601 = 89460^2 + 336449^2 .

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 121201021201 - 2¹¹ = 121201019153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201021231) 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, 16825200 + ... + 16832401.

It is an arithmetic number, because the mean of its divisors is an integer number (16374423373).

Almost surely, 2^121201021201 is an apocalyptic number.

It is an amenable number.

121201021201 is a deficient number, since it is larger than the sum of its proper divisors (9794365783).

121201021201 is a wasteful number, since it uses less digits than its factorization.

121201021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33657891.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121201021201 its reverse (102120102121), we get a palindrome (223321123322).

It can be divided in two parts, 12120102120 and 1, that added together give a palindrome (12120102121).

The spelling of 121201021201 in words is "one hundred twenty-one billion, two hundred one million, twenty-one thousand, two hundred one".