212010123330 has 40 divisors (see below), whose sum is σ = 570071667132. Its totient is φ = 56536032672.

The previous prime is 212010123329. The next prime is 212010123331. The reversal of 212010123330 is 33321010212.

212010123330 is a `hidden beast` number, since 212 + 0 + 1 + 0 + 123 + 330 = 666.

It is an interprime number because it is at equal distance from previous prime (212010123329) and next prime (212010123331).

It can be written as a sum of positive squares in 2 ways, for example, as 211996705761 + 13417569 = 460431^2 + 3663^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212010123331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 130869637 + ... + 130871256.

Almost surely, 2^212010123330 is an apocalyptic number.

212010123330 is an abundant number, since it is smaller than the sum of its proper divisors (358061543802).

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

212010123330 is a wasteful number, since it uses less digits than its factorization.

212010123330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261740912 (or 261740903 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212010123330 its reverse (33321010212), we get a palindrome (245331133542).

The spelling of 212010123330 in words is "two hundred twelve billion, ten million, one hundred twenty-three thousand, three hundred thirty".