11010021121 has 8 divisors (see below), whose sum is σ = 12011760000. Its totient is φ = 10008420240.

The previous prime is 11010021047. The next prime is 11010021137. The reversal of 11010021121 is 12112001011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11010021121 - 2¹¹ = 11010019073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010021098 and 11010021107.

It is not an unprimeable number, because it can be changed into a prime (11010021161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204120 + ... + 252358.

It is an arithmetic number, because the mean of its divisors is an integer number (1501470000).

Almost surely, 2^11010021121 is an apocalyptic number.

11010021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11010021121 is a deficient number, since it is larger than the sum of its proper divisors (1001738879).

11010021121 is a wasteful number, since it uses less digits than its factorization.

11010021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68999.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11010021121 its reverse (12112001011), we get a palindrome (23122022132).

The spelling of 11010021121 in words is "eleven billion, ten million, twenty-one thousand, one hundred twenty-one".