10011001021021 has 64 divisors (see below), whose sum is σ = 13593222107136. Its totient is φ = 7119502387200.

The previous prime is 10011001020913. The next prime is 10011001021027. The reversal of 10011001021021 is 12012010011001.

10011001021021 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 10011001021021 - 2⁹ = 10011001020509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10011001020989 and 10011001021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011001021027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100057006 + ... + 100157008.

It is an arithmetic number, because the mean of its divisors is an integer number (212394095424).

Almost surely, 2^{10011001021021} is an apocalyptic number.

10011001021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10011001021021 is a deficient number, since it is larger than the sum of its proper divisors (3582221086115).

10011001021021 is a wasteful number, since it uses less digits than its factorization.

10011001021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101162.

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

Adding to 10011001021021 its reverse (12012010011001), we get a palindrome (22023011032022).

The spelling of 10011001021021 in words is "ten trillion, eleven billion, one million, twenty-one thousand, twenty-one".