212202210222111 has 4 divisors (see below), whose sum is σ = 282936280296152. Its totient is φ = 141468140148072.

The previous prime is 212202210222061. The next prime is 212202210222113. The reversal of 212202210222111 is 111222012202212.

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

It is not a de Polignac number, because 212202210222111 - 2⁶ = 212202210222047 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 (212202210222113) 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, 35367035037016 + ... + 35367035037021.

It is an arithmetic number, because the mean of its divisors is an integer number (70734070074038).

Almost surely, 2^{212202210222111} is an apocalyptic number.

212202210222111 is a deficient number, since it is larger than the sum of its proper divisors (70734070074041).

212202210222111 is an equidigital number, since it uses as much as digits as its factorization.

212202210222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70734070074040.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212202210222111 its reverse (111222012202212), we get a palindrome (323424222424323).

The spelling of 212202210222111 in words is "two hundred twelve trillion, two hundred two billion, two hundred ten million, two hundred twenty-two thousand, one hundred eleven".