212203030111 has 4 divisors (see below), whose sum is σ = 224685561312. Its totient is φ = 199720498912.

The previous prime is 212203030097. The next prime is 212203030133. The reversal of 212203030111 is 111030302212.

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 212203030111 - 2¹⁷ = 212202899039 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 (212203030141) 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, 6241265575 + ... + 6241265608.

It is an arithmetic number, because the mean of its divisors is an integer number (56171390328).

Almost surely, 2^212203030111 is an apocalyptic number.

212203030111 is a deficient number, since it is larger than the sum of its proper divisors (12482531201).

212203030111 is a wasteful number, since it uses less digits than its factorization.

212203030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12482531200.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212203030111 its reverse (111030302212), we get a palindrome (323233332323).

The spelling of 212203030111 in words is "two hundred twelve billion, two hundred three million, thirty thousand, one hundred eleven".