10021210010111 has 4 divisors (see below), whose sum is σ = 10021439945424. Its totient is φ = 10020980074800.

The previous prime is 10021210010101. The next prime is 10021210010113. The reversal of 10021210010111 is 11101001212001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021210010111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021210010092 and 10021210010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021210010113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114902270 + ... + 114989451.

It is an arithmetic number, because the mean of its divisors is an integer number (2505359986356).

Almost surely, 2^{10021210010111} is an apocalyptic number.

10021210010111 is a deficient number, since it is larger than the sum of its proper divisors (229935313).

10021210010111 is an equidigital number, since it uses as much as digits as its factorization.

10021210010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229935312.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10021210010111 its reverse (11101001212001), we get a palindrome (21122211222112).

The spelling of 10021210010111 in words is "ten trillion, twenty-one billion, two hundred ten million, ten thousand, one hundred eleven".