11020022121221 has 8 divisors (see below), whose sum is σ = 11053494583488. Its totient is φ = 10986550740000.

The previous prime is 11020022121061. The next prime is 11020022121223. The reversal of 11020022121221 is 12212122002011.

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 11020022121221 - 2²⁶ = 11019955012357 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 11020022121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020022121223) 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, 23250161 + ... + 23719401.

It is an arithmetic number, because the mean of its divisors is an integer number (1381686822936).

Almost surely, 2^{11020022121221} is an apocalyptic number.

It is an amenable number.

11020022121221 is a deficient number, since it is larger than the sum of its proper divisors (33472462267).

11020022121221 is an equidigital number, since it uses as much as digits as its factorization.

11020022121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540523.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11020022121221 its reverse (12212122002011), we get a palindrome (23232144123232).

It can be divided in two parts, 1102002 and 2121221, that added together give a palindrome (3223223).

The spelling of 11020022121221 in words is "eleven trillion, twenty billion, twenty-two million, one hundred twenty-one thousand, two hundred twenty-one".