10021012011 has 8 divisors (see below), whose sum is σ = 14845943760. Its totient is φ = 6680674656.

The previous prime is 10021011997. The next prime is 10021012021. The reversal of 10021012011 is 11021012001.

It is a happy number.

10021012011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10021012011 - 2¹³ = 10021003819 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 = 10021011984 and 10021012002.

It is not an unprimeable number, because it can be changed into a prime (10021012021) 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, 185574270 + ... + 185574323.

It is an arithmetic number, because the mean of its divisors is an integer number (1855742970).

Almost surely, 2^10021012011 is an apocalyptic number.

10021012011 is a deficient number, since it is larger than the sum of its proper divisors (4824931749).

10021012011 is an equidigital number, since it uses as much as digits as its factorization.

10021012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371148602 (or 371148596 counting only the distinct ones).

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

Adding to 10021012011 its reverse (11021012001), we get a palindrome (21042024012).

The spelling of 10021012011 in words is "ten billion, twenty-one million, twelve thousand, eleven".