11022021121020 has 384 divisors, whose sum is σ = 39218779471872. Its totient is φ = 2249938944000.

The previous prime is 11022021120919. The next prime is 11022021121021. The reversal of 11022021121020 is 2012112022011.

11022021121020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022021121021) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1113218070 + ... + 1113227970.

It is an arithmetic number, because the mean of its divisors is an integer number (102132238208).

Almost surely, 2^{11022021121020} is an apocalyptic number.

11022021121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11022021121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19609389735936).

11022021121020 is an abundant number, since it is smaller than the sum of its proper divisors (28196758350852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11022021121020 is a wasteful number, since it uses less digits than its factorization.

11022021121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16541 (or 16539 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11022021121020 its reverse (2012112022011), we get a palindrome (13034133143031).

Subtracting from 11022021121020 its reverse (2012112022011), we obtain a palindrome (9009909099009).

It can be divided in two parts, 1102202 and 1121020, that added together give a palindrome (2223222).

The spelling of 11022021121020 in words is "eleven trillion, twenty-two billion, twenty-one million, one hundred twenty-one thousand, twenty".