10112011012021 has 2 divisors, whose sum is σ = 10112011012022. Its totient is φ = 10112011012020.

The previous prime is 10112011011979. The next prime is 10112011012039. The reversal of 10112011012021 is 12021011021101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7429903866225 + 2682107145796 = 2725785^2 + 1637714^2 .

It is an emirp because it is prime and its reverse (12021011021101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10112011012021 - 2²¹ = 10112008914869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10112011011992 and 10112011012010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10112011012321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056005506010 + 5056005506011.

It is an arithmetic number, because the mean of its divisors is an integer number (5056005506011).

Almost surely, 2^{10112011012021} is an apocalyptic number.

It is an amenable number.

10112011012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10112011012021 is an equidigital number, since it uses as much as digits as its factorization.

10112011012021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 10112011012021 its reverse (12021011021101), we get a palindrome (22133022033122).

The spelling of 10112011012021 in words is "ten trillion, one hundred twelve billion, eleven million, twelve thousand, twenty-one".