212101012120110 has 32 divisors (see below), whose sum is σ = 522800332579872. Its totient is φ = 55031613955200.

The previous prime is 212101012120103. The next prime is 212101012120141. The reversal of 212101012120110 is 11021210101212.

It is a happy number.

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 212101012120110.

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, 95540995341 + ... + 95540997560.

It is an arithmetic number, because the mean of its divisors is an integer number (16337510393121).

Almost surely, 2^{212101012120110} is an apocalyptic number.

212101012120110 is an abundant number, since it is smaller than the sum of its proper divisors (310699320459762).

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

212101012120110 is a wasteful number, since it uses less digits than its factorization.

212101012120110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191081992948.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212101012120110 its reverse (11021210101212), we get a palindrome (223122222221322).

The spelling of 212101012120110 in words is "two hundred twelve trillion, one hundred one billion, twelve million, one hundred twenty thousand, one hundred ten".