210212110102111 has 4 divisors (see below), whose sum is σ = 226382272417672. Its totient is φ = 194041947786552.

The previous prime is 210212110102109. The next prime is 210212110102153. The reversal of 210212110102111 is 111201011212012.

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 210212110102111 - 2¹ = 210212110102109 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 (210212110105111) 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, 8085081157761 + ... + 8085081157786.

It is an arithmetic number, because the mean of its divisors is an integer number (56595568104418).

Almost surely, 2^{210212110102111} is an apocalyptic number.

210212110102111 is a deficient number, since it is larger than the sum of its proper divisors (16170162315561).

210212110102111 is a wasteful number, since it uses less digits than its factorization.

210212110102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170162315560.

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

Adding to 210212110102111 its reverse (111201011212012), we get a palindrome (321413121314123).

The spelling of 210212110102111 in words is "two hundred ten trillion, two hundred twelve billion, one hundred ten million, one hundred two thousand, one hundred eleven".