212102002021110 has 128 divisors (see below), whose sum is σ = 516045554519040. Its totient is φ = 55789340428800.

The previous prime is 212102002021103. The next prime is 212102002021121. The reversal of 212102002021110 is 11120200201212.

It is a super-3 number, since 3×212102002021110³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212102002021110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 393334975 + ... + 393873845.

It is an arithmetic number, because the mean of its divisors is an integer number (4031605894680).

Almost surely, 2^{212102002021110} is an apocalyptic number.

212102002021110 is an abundant number, since it is smaller than the sum of its proper divisors (303943552497930).

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

212102002021110 is a wasteful number, since it uses less digits than its factorization.

212102002021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539654.

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

Adding to 212102002021110 its reverse (11120200201212), we get a palindrome (223222202222322).

The spelling of 212102002021110 in words is "two hundred twelve trillion, one hundred two billion, two million, twenty-one thousand, one hundred ten".