212100001010210 has 16 divisors (see below), whose sum is σ = 381815572681656. Its totient is φ = 84832095767808.

The previous prime is 212100001010171. The next prime is 212100001010213. The reversal of 212100001010210 is 12010100001212.

It can be written as a sum of positive squares in 4 ways, for example, as 84393931904689 + 127706069105521 = 9186617^2 + 11300711^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212100001010191 and 212100001010200.

It is not an unprimeable number, because it can be changed into a prime (212100001010213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987966839 + ... + 988181498.

Almost surely, 2^{212100001010210} is an apocalyptic number.

212100001010210 is a deficient number, since it is larger than the sum of its proper divisors (169715571671446).

212100001010210 is a wasteful number, since it uses less digits than its factorization.

212100001010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976159077.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212100001010210 its reverse (12010100001212), we get a palindrome (224110101011422).

The spelling of 212100001010210 in words is "two hundred twelve trillion, one hundred billion, one million, ten thousand, two hundred ten".