212102202111 has 8 divisors (see below), whose sum is σ = 283244128944. Its totient is φ = 141180871680.

The previous prime is 212102202107. The next prime is 212102202119. The reversal of 212102202111 is 111202201212.

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

It is not a de Polignac number, because 212102202111 - 2² = 212102202107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102202119) 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, 55146856 + ... + 55150701.

It is an arithmetic number, because the mean of its divisors is an integer number (35405516118).

Almost surely, 2^212102202111 is an apocalyptic number.

212102202111 is a deficient number, since it is larger than the sum of its proper divisors (71141926833).

212102202111 is a wasteful number, since it uses less digits than its factorization.

212102202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110298201.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212102202111 its reverse (111202201212), we get a palindrome (323304403323).

The spelling of 212102202111 in words is "two hundred twelve billion, one hundred two million, two hundred two thousand, one hundred eleven".