10012011211021 has 8 divisors (see below), whose sum is σ = 10124568554040. Its totient is φ = 9899455264512.

The previous prime is 10012011211019. The next prime is 10012011211109. The reversal of 10012011211021 is 12011211021001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 80720764996 + 9931290446025 = 284114^2 + 3151395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10012011211021 - 2¹ = 10012011211019 is a prime.

It is a super-2 number, since 2×10012011211021² (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 = 10012011210992 and 10012011211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012081211021) 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, 22232931 + ... + 22678783.

It is an arithmetic number, because the mean of its divisors is an integer number (1265571069255).

Almost surely, 2^{10012011211021} is an apocalyptic number.

It is an amenable number.

10012011211021 is a deficient number, since it is larger than the sum of its proper divisors (112557343019).

10012011211021 is an equidigital number, since it uses as much as digits as its factorization.

10012011211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698255.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10012011211021 its reverse (12011211021001), we get a palindrome (22023222232022).

The spelling of 10012011211021 in words is "ten trillion, twelve billion, eleven million, two hundred eleven thousand, twenty-one".