10212020212111 has 4 divisors (see below), whose sum is σ = 10313129323224. Its totient is φ = 10110911101000.

The previous prime is 10212020212109. The next prime is 10212020212129. The reversal of 10212020212111 is 11121202021201.

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

It is a cyclic number.

It is not a de Polignac number, because 10212020212111 - 2¹ = 10212020212109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212020212411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50554555405 + ... + 50554555606.

It is an arithmetic number, because the mean of its divisors is an integer number (2578282330806).

Almost surely, 2^{10212020212111} is an apocalyptic number.

10212020212111 is a deficient number, since it is larger than the sum of its proper divisors (101109111113).

10212020212111 is a wasteful number, since it uses less digits than its factorization.

10212020212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101109111112.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10212020212111 its reverse (11121202021201), we get a palindrome (21333222233312).

The spelling of 10212020212111 in words is "ten trillion, two hundred twelve billion, twenty million, two hundred twelve thousand, one hundred eleven".