10121012021011 has 4 divisors (see below), whose sum is σ = 10121068629792. Its totient is φ = 10120955412232.

The previous prime is 10121012020997. The next prime is 10121012021093. The reversal of 10121012021011 is 11012021012101.

It is a happy number.

10121012021011 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 10121012021011 - 2⁹ = 10121012020499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121012020982 and 10121012021000.

It is not an unprimeable number, because it can be changed into a prime (10121012021311) 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, 28035355 + ... + 28394068.

It is an arithmetic number, because the mean of its divisors is an integer number (2530267157448).

Almost surely, 2^{10121012021011} is an apocalyptic number.

10121012021011 is a deficient number, since it is larger than the sum of its proper divisors (56608781).

10121012021011 is an equidigital number, since it uses as much as digits as its factorization.

10121012021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56608780.

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

Adding to 10121012021011 its reverse (11012021012101), we get a palindrome (21133033033112).

The spelling of 10121012021011 in words is "ten trillion, one hundred twenty-one billion, twelve million, twenty-one thousand, eleven".