10121111021211 has 32 divisors (see below), whose sum is σ = 13935567313920. Its totient is φ = 6529900665600.

The previous prime is 10121111021209. The next prime is 10121111021213. The reversal of 10121111021211 is 11212011112101.

It is an interprime number because it is at equal distance from previous prime (10121111021209) and next prime (10121111021213).

It is not a de Polignac number, because 10121111021211 - 2¹ = 10121111021209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10121111021213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6970296 + ... + 8296218.

It is an arithmetic number, because the mean of its divisors is an integer number (435486478560).

Almost surely, 2^{10121111021211} is an apocalyptic number.

10121111021211 is a deficient number, since it is larger than the sum of its proper divisors (3814456292709).

10121111021211 is a wasteful number, since it uses less digits than its factorization.

10121111021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326467.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10121111021211 its reverse (11212011112101), we get a palindrome (21333122133312).

The spelling of 10121111021211 in words is "ten trillion, one hundred twenty-one billion, one hundred eleven million, twenty-one thousand, two hundred eleven".