11012020020121 has 32 divisors (see below), whose sum is σ = 11826065144960. Its totient is φ = 10223188816896.

The previous prime is 11012020019981. The next prime is 11012020020167. The reversal of 11012020020121 is 12102002021011.

11012020020121 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 11012020020121 - 2¹¹ = 11012020018073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012020020181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188477905 + ... + 188536321.

It is an arithmetic number, because the mean of its divisors is an integer number (369564535780).

Almost surely, 2^{11012020020121} is an apocalyptic number.

It is an amenable number.

11012020020121 is a deficient number, since it is larger than the sum of its proper divisors (814045124839).

11012020020121 is a wasteful number, since it uses less digits than its factorization.

11012020020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59273.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11012020020121 its reverse (12102002021011), we get a palindrome (23114022041132).

The spelling of 11012020020121 in words is "eleven trillion, twelve billion, twenty million, twenty thousand, one hundred twenty-one".