212152110 has 128 divisors (see below), whose sum is σ = 554273280. Its totient is φ = 51856896.

The previous prime is 212152099. The next prime is 212152159. The reversal of 212152110 is 11251212.

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 212152110.

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, 1982677 + ... + 1982783.

It is an arithmetic number, because the mean of its divisors is an integer number (4330260).

Almost surely, 2^212152110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212152110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277136640).

212152110 is an abundant number, since it is smaller than the sum of its proper divisors (342121170).

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

212152110 is a wasteful number, since it uses less digits than its factorization.

212152110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 212152110 is about 14565.4423207811. The cubic root of 212152110 is about 596.4157703534.

The spelling of 212152110 in words is "two hundred twelve million, one hundred fifty-two thousand, one hundred ten".