212002321111 has 16 divisors (see below), whose sum is σ = 244044195840. Its totient is φ = 180402757920.

The previous prime is 212002321087. The next prime is 212002321117. The reversal of 212002321111 is 111123200212.

It is not a de Polignac number, because 212002321111 - 2⁹ = 212002320599 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 (212002321117) 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, 621201 + ... + 899941.

It is an arithmetic number, because the mean of its divisors is an integer number (15252762240).

Almost surely, 2^212002321111 is an apocalyptic number.

212002321111 is a deficient number, since it is larger than the sum of its proper divisors (32041874729).

212002321111 is a wasteful number, since it uses less digits than its factorization.

212002321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279534.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212002321111 its reverse (111123200212), we get a palindrome (323125521323).

The spelling of 212002321111 in words is "two hundred twelve billion, two million, three hundred twenty-one thousand, one hundred eleven".