10011011210021 has 16 divisors (see below), whose sum is σ = 10055027635200. Its totient is φ = 9967098033648.

The previous prime is 10011011210003. The next prime is 10011011210023. The reversal of 10011011210021 is 12001211011001.

10011011210021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10011011210021 - 2²⁶ = 10010944101157 is a prime.

It is a super-2 number, since 2×10011011210021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011011209984 and 10011011210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011011210023) 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, 1064656706 + ... + 1064666108.

It is an arithmetic number, because the mean of its divisors is an integer number (628439227200).

Almost surely, 2^{10011011210021} is an apocalyptic number.

It is an amenable number.

10011011210021 is a deficient number, since it is larger than the sum of its proper divisors (44016425179).

10011011210021 is an equidigital number, since it uses as much as digits as its factorization.

10011011210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14408.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10011011210021 its reverse (12001211011001), we get a palindrome (22012222221022).

It can be divided in two parts, 1001101 and 1210021, that added together give a palindrome (2211122).

The spelling of 10011011210021 in words is "ten trillion, eleven billion, eleven million, two hundred ten thousand, twenty-one".