212102122101102 has 48 divisors (see below), whose sum is σ = 466787329901568. Its totient is φ = 69596071934400.

The previous prime is 212102122101097. The next prime is 212102122101113. The reversal of 212102122101102 is 201101221201212.

212102122101102 is a `hidden beast` number, since 21 + 210 + 212 + 210 + 1 + 10 + 2 = 666.

It is a super-2 number, since 2×212102122101102² (a number of 29 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 336875758 + ... + 337504785.

It is an arithmetic number, because the mean of its divisors is an integer number (9724736039616).

Almost surely, 2^{212102122101102} is an apocalyptic number.

212102122101102 is an abundant number, since it is smaller than the sum of its proper divisors (254685207800466).

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

212102122101102 is a wasteful number, since it uses less digits than its factorization.

212102122101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674380825 (or 674380822 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212102122101102 its reverse (201101221201212), we get a palindrome (413203343302314).

The spelling of 212102122101102 in words is "two hundred twelve trillion, one hundred two billion, one hundred twenty-two million, one hundred one thousand, one hundred two".