13121202021211 has 8 divisors (see below), whose sum is σ = 13243919119920. Its totient is φ = 12998486571648.

The previous prime is 13121202021209. The next prime is 13121202021227. The reversal of 13121202021211 is 11212020212131.

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 13121202021211 - 2¹ = 13121202021209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13121202021281) 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, 20521135 + ... + 21150871.

It is an arithmetic number, because the mean of its divisors is an integer number (1655489889990).

Almost surely, 2^{13121202021211} is an apocalyptic number.

13121202021211 is a deficient number, since it is larger than the sum of its proper divisors (122717098709).

13121202021211 is a wasteful number, since it uses less digits than its factorization.

13121202021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824573.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 13121202021211 its reverse (11212020212131), we get a palindrome (24333222233342).

The spelling of 13121202021211 in words is "thirteen trillion, one hundred twenty-one billion, two hundred two million, twenty-one thousand, two hundred eleven".