212220210110111 has 32 divisors (see below), whose sum is σ = 265663778071680. Its totient is φ = 165296717107200.

The previous prime is 212220210110101. The next prime is 212220210110147. The reversal of 212220210110111 is 111011012022212.

It is not a de Polignac number, because 212220210110111 - 2³⁸ = 211945332203167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 212220210110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220210110101) 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, 236224691 + ... + 237121371.

It is an arithmetic number, because the mean of its divisors is an integer number (8301993064740).

Almost surely, 2^{212220210110111} is an apocalyptic number.

212220210110111 is a deficient number, since it is larger than the sum of its proper divisors (53443567961569).

212220210110111 is a wasteful number, since it uses less digits than its factorization.

212220210110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965315.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212220210110111 its reverse (111011012022212), we get a palindrome (323231222132323).

The spelling of 212220210110111 in words is "two hundred twelve trillion, two hundred twenty billion, two hundred ten million, one hundred ten thousand, one hundred eleven".