212021222212111 has 8 divisors (see below), whose sum is σ = 228330687831120. Its totient is φ = 195711776712192.

The previous prime is 212021222212081. The next prime is 212021222212133. The reversal of 212021222212111 is 111212222120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212021222212111 - 2⁷ = 212021222211983 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 (212021222212211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22396335 + ... + 30424303.

It is an arithmetic number, because the mean of its divisors is an integer number (28541335978890).

Almost surely, 2^{212021222212111} is an apocalyptic number.

212021222212111 is a deficient number, since it is larger than the sum of its proper divisors (16309465619009).

212021222212111 is a wasteful number, since it uses less digits than its factorization.

212021222212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10059545.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 212021222212111 its reverse (111212222120212), we get a palindrome (323233444332323).

The spelling of 212021222212111 in words is "two hundred twelve trillion, twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, one hundred eleven".