212111012122110 has 32 divisors (see below), whose sum is σ = 565629365659680. Its totient is φ = 56562936565824.

The previous prime is 212111012122103. The next prime is 212111012122129. The reversal of 212111012122110 is 11221210111212.

It is a happy number.

212111012122110 is a `hidden beast` number, since 21 + 211 + 10 + 1 + 212 + 211 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392798170327 + ... + 392798170866.

It is an arithmetic number, because the mean of its divisors is an integer number (17675917676865).

Almost surely, 2^{212111012122110} is an apocalyptic number.

212111012122110 is an abundant number, since it is smaller than the sum of its proper divisors (353518353537570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212111012122110 is a wasteful number, since it uses less digits than its factorization.

212111012122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785596341209 (or 785596341203 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 212111012122110 its reverse (11221210111212), we get a palindrome (223332222233322).

The spelling of 212111012122110 in words is "two hundred twelve trillion, one hundred eleven billion, twelve million, one hundred twenty-two thousand, one hundred ten".