10012121210011 has 4 divisors (see below), whose sum is σ = 10012159830024. Its totient is φ = 10012082590000.

The previous prime is 10012121209933. The next prime is 10012121210023. The reversal of 10012121210011 is 11001212121001.

It is a happy number.

10012121210011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10012121210011 - 2³⁷ = 9874682256539 is a prime.

It is a super-2 number, since 2×10012121210011² (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 = 10012121209973 and 10012121210000.

It is not an unprimeable number, because it can be changed into a prime (10012121510011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18918490 + ... + 19440511.

It is an arithmetic number, because the mean of its divisors is an integer number (2503039957506).

Almost surely, 2^{10012121210011} is an apocalyptic number.

10012121210011 is a deficient number, since it is larger than the sum of its proper divisors (38620013).

10012121210011 is an equidigital number, since it uses as much as digits as its factorization.

10012121210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38620012.

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

Adding to 10012121210011 its reverse (11001212121001), we get a palindrome (21013333331012).

The spelling of 10012121210011 in words is "ten trillion, twelve billion, one hundred twenty-one million, two hundred ten thousand, eleven".