212120001010 has 16 divisors (see below), whose sum is σ = 389020078296. Its totient is φ = 83247094528.

The previous prime is 212120000999. The next prime is 212120001031. The reversal of 212120001010 is 10100021212.

212120001010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 212004072721 + 115928289 = 460439^2 + 10767^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200112679 + ... + 200113738.

Almost surely, 2^212120001010 is an apocalyptic number.

212120001010 is a deficient number, since it is larger than the sum of its proper divisors (176900077286).

212120001010 is a wasteful number, since it uses less digits than its factorization.

212120001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400226477.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212120001010 its reverse (10100021212), we get a palindrome (222220022222).

The spelling of 212120001010 in words is "two hundred twelve billion, one hundred twenty million, one thousand, ten".