1012100211 has 64 divisors (see below), whose sum is σ = 1620541440. Its totient is φ = 622702080.

The previous prime is 1012100197. The next prime is 1012100213. The reversal of 1012100211 is 1120012101.

It is a happy number.

It is not a de Polignac number, because 1012100211 - 2¹¹ = 1012098163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1012100193 and 1012100202.

It is not an unprimeable number, because it can be changed into a prime (1012100213) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 3233391 + ... + 3233703.

It is an arithmetic number, because the mean of its divisors is an integer number (25320960).

Almost surely, 2^1012100211 is an apocalyptic number.

1012100211 is a deficient number, since it is larger than the sum of its proper divisors (608441229).

1012100211 is a wasteful number, since it uses less digits than its factorization.

1012100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1012100211 is about 31813.5224550819. The cubic root of 1012100211 is about 1004.0172438084.

Adding to 1012100211 its reverse (1120012101), we get a palindrome (2132112312).

The spelling of 1012100211 in words is "one billion, twelve million, one hundred thousand, two hundred eleven".