212150310 has 64 divisors (see below), whose sum is σ = 540836352. Its totient is φ = 53075456.

The previous prime is 212150299. The next prime is 212150311. The reversal of 212150310 is 13051212.

It is a super-2 number, since 2×212150310² = 90015508066192200, which contains 22 as substring.

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 212150310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212150311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256117 + ... + 256943.

It is an arithmetic number, because the mean of its divisors is an integer number (8450568).

Almost surely, 2^212150310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212150310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270418176).

212150310 is an abundant number, since it is smaller than the sum of its proper divisors (328686042).

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

212150310 is a wasteful number, since it uses less digits than its factorization.

212150310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 212150310 is about 14565.3805305594. The cubic root of 212150310 is about 596.4140835897.

The spelling of 212150310 in words is "two hundred twelve million, one hundred fifty thousand, three hundred ten".