11030021220121 has 4 divisors (see below), whose sum is σ = 11185373631744. Its totient is φ = 10874668808500.

The previous prime is 11030021220007. The next prime is 11030021220151. The reversal of 11030021220121 is 12102212003011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11030021220121 is a prime.

It is a super-2 number, since 2×11030021220121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11030021220095 and 11030021220104.

It is not an unprimeable number, because it can be changed into a prime (11030021220151) 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, 77676205705 + ... + 77676205846.

It is an arithmetic number, because the mean of its divisors is an integer number (2796343407936).

Almost surely, 2^{11030021220121} is an apocalyptic number.

It is an amenable number.

11030021220121 is a deficient number, since it is larger than the sum of its proper divisors (155352411623).

11030021220121 is an equidigital number, since it uses as much as digits as its factorization.

11030021220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155352411622.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11030021220121 its reverse (12102212003011), we get a palindrome (23132233223132).

The spelling of 11030021220121 in words is "eleven trillion, thirty billion, twenty-one million, two hundred twenty thousand, one hundred twenty-one".