10012021011 has 16 divisors (see below), whose sum is σ = 14858714400. Its totient is φ = 6662939904.

The previous prime is 10012020979. The next prime is 10012021013. The reversal of 10012021011 is 11012021001.

It is a happy number.

10012021011 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 10012021011 - 2⁵ = 10012020979 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 = 10012020984 and 10012021002.

It is not an unprimeable number, because it can be changed into a prime (10012021013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310486 + ... + 341211.

It is an arithmetic number, because the mean of its divisors is an integer number (928669650).

Almost surely, 2^10012021011 is an apocalyptic number.

10012021011 is a deficient number, since it is larger than the sum of its proper divisors (4846693389).

10012021011 is an equidigital number, since it uses as much as digits as its factorization.

10012021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652275 (or 652269 counting only the distinct ones).

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

Adding to 10012021011 its reverse (11012021001), we get a palindrome (21024042012).

The spelling of 10012021011 in words is "ten billion, twelve million, twenty-one thousand, eleven".