212111001010 has 16 divisors (see below), whose sum is σ = 381809889216. Its totient is φ = 84842158768.

The previous prime is 212111001001. The next prime is 212111001029. The reversal of 212111001010 is 10100111212.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148437 + ... + 668023.

It is an arithmetic number, because the mean of its divisors is an integer number (23863118076).

Almost surely, 2^212111001010 is an apocalyptic number.

212111001010 is a deficient number, since it is larger than the sum of its proper divisors (169698888206).

212111001010 is a wasteful number, since it uses less digits than its factorization.

212111001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560417.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 212111001010 its reverse (10100111212), we get a palindrome (222211112222).

The spelling of 212111001010 in words is "two hundred twelve billion, one hundred eleven million, one thousand, ten".