11022222121021 has 8 divisors (see below), whose sum is σ = 11428799105024. Its totient is φ = 10618833976560.

The previous prime is 11022222120983. The next prime is 11022222121033. The reversal of 11022222121021 is 12012122222011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11022222121021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11022222121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022222121051) 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, 797202846 + ... + 797216671.

It is an arithmetic number, because the mean of its divisors is an integer number (1428599888128).

Almost surely, 2^{11022222121021} is an apocalyptic number.

It is an amenable number.

11022222121021 is a deficient number, since it is larger than the sum of its proper divisors (406576984003).

11022222121021 is a wasteful number, since it uses less digits than its factorization.

11022222121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594419771.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11022222121021 its reverse (12012122222011), we get a palindrome (23034344343032).

The spelling of 11022222121021 in words is "eleven trillion, twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, twenty-one".