11012121021121 has 16 divisors (see below), whose sum is σ = 12140835128640. Its totient is φ = 9904987025920.

The previous prime is 11012121021091. The next prime is 11012121021127. The reversal of 11012121021121 is 12112012121011.

11012121021121 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 11012121021121 - 2⁷ = 11012121020993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012121021095 and 11012121021104.

It is not an unprimeable number, because it can be changed into a prime (11012121021127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7077715 + ... + 8492248.

It is an arithmetic number, because the mean of its divisors is an integer number (758802195540).

Almost surely, 2^{11012121021121} is an apocalyptic number.

11012121021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012121021121 is a deficient number, since it is larger than the sum of its proper divisors (1128714107519).

11012121021121 is a wasteful number, since it uses less digits than its factorization.

11012121021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15570656.

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

Adding to 11012121021121 its reverse (12112012121011), we get a palindrome (23124133142132).

The spelling of 11012121021121 in words is "eleven trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-one".