10212321111 has 16 divisors (see below), whose sum is σ = 13688870400. Its totient is φ = 6772074848.

The previous prime is 10212321037. The next prime is 10212321137. The reversal of 10212321111 is 11112321201.

It is a cyclic number.

It is not a de Polignac number, because 10212321111 - 2²⁷ = 10078103383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212321811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512350 + ... + 531908.

It is an arithmetic number, because the mean of its divisors is an integer number (855554400).

Almost surely, 2^10212321111 is an apocalyptic number.

10212321111 is a deficient number, since it is larger than the sum of its proper divisors (3476549289).

10212321111 is a wasteful number, since it uses less digits than its factorization.

10212321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20478.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10212321111 its reverse (11112321201), we get a palindrome (21324642312).

The spelling of 10212321111 in words is "ten billion, two hundred twelve million, three hundred twenty-one thousand, one hundred eleven".