212651010 has 288 divisors, whose sum is σ = 690633216. Its totient is φ = 44928000.

The previous prime is 212651009. The next prime is 212651027. The reversal of 212651010 is 10156212.

212651010 is a `hidden beast` number, since 2 + 1 + 2 + 651 + 0 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 5186590 + ... + 5186630.

It is an arithmetic number, because the mean of its divisors is an integer number (2398032).

Almost surely, 2^212651010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212651010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345316608).

212651010 is an abundant number, since it is smaller than the sum of its proper divisors (477982206).

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

212651010 is a wasteful number, since it uses less digits than its factorization.

212651010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 212651010 is about 14582.5584175069. The cubic root of 212651010 is about 596.8829177061.

The spelling of 212651010 in words is "two hundred twelve million, six hundred fifty-one thousand, ten".