1020011211 has 12 divisors (see below), whose sum is σ = 1527918392. Its totient is φ = 680007312.

The previous prime is 1020011207. The next prime is 1020011297. The reversal of 1020011211 is 1121100201.

It is a happy number.

1020011211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020011211 - 2² = 1020011207 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020011193 and 1020011202.

It is not an unprimeable number, because it can be changed into a prime (1020011711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2098546 + ... + 2099031.

Almost surely, 2^1020011211 is an apocalyptic number.

1020011211 is a deficient number, since it is larger than the sum of its proper divisors (507907181).

1020011211 is an frugal number, since it uses more digits than its factorization.

1020011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197592 (or 4197580 counting only the distinct ones).

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

The square root of 1020011211 is about 31937.6143598735. The cubic root of 1020011211 is about 1006.6263975359.

Adding to 1020011211 its reverse (1121100201), we get a palindrome (2141111412).

The spelling of 1020011211 in words is "one billion, twenty million, eleven thousand, two hundred eleven".