11020121121001 has 8 divisors (see below), whose sum is σ = 11045171586944. Its totient is φ = 10995074745120.

The previous prime is 11020121120969. The next prime is 11020121121047. The reversal of 11020121121001 is 10012112102011.

It is a happy number.

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 11020121121001 - 2⁵ = 11020121120969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020121121071) 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, 4405036 + ... + 6437746.

It is an arithmetic number, because the mean of its divisors is an integer number (1380646448368).

Almost surely, 2^{11020121121001} is an apocalyptic number.

It is an amenable number.

11020121121001 is a deficient number, since it is larger than the sum of its proper divisors (25050465943).

11020121121001 is a wasteful number, since it uses less digits than its factorization.

11020121121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045031.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11020121121001 its reverse (10012112102011), we get a palindrome (21032233223012).

The spelling of 11020121121001 in words is "eleven trillion, twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, one".