212420233111 has 32 divisors (see below), whose sum is σ = 229743360000. Its totient is φ = 195793832448.

The previous prime is 212420233049. The next prime is 212420233121. The reversal of 212420233111 is 111332024212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212420233111 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 (212420233121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120761050 + ... + 120762808.

It is an arithmetic number, because the mean of its divisors is an integer number (7179480000).

Almost surely, 2^212420233111 is an apocalyptic number.

212420233111 is a deficient number, since it is larger than the sum of its proper divisors (17323126889).

212420233111 is a wasteful number, since it uses less digits than its factorization.

212420233111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 212420233111 its reverse (111332024212), we get a palindrome (323752257323).

The spelling of 212420233111 in words is "two hundred twelve billion, four hundred twenty million, two hundred thirty-three thousand, one hundred eleven".