11022121001 has 8 divisors (see below), whose sum is σ = 11165575680. Its totient is φ = 10878764832.

The previous prime is 11022120997. The next prime is 11022121009. The reversal of 11022121001 is 10012122011.

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 11022121001 - 2² = 11022120997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11022121009) 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, 215741 + ... + 261893.

It is an arithmetic number, because the mean of its divisors is an integer number (1395696960).

Almost surely, 2^11022121001 is an apocalyptic number.

It is an amenable number.

11022121001 is a deficient number, since it is larger than the sum of its proper divisors (143454679).

11022121001 is an equidigital number, since it uses as much as digits as its factorization.

11022121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49255.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11022121001 its reverse (10012122011), we get a palindrome (21034243012).

The spelling of 11022121001 in words is "eleven billion, twenty-two million, one hundred twenty-one thousand, one".