11101202021020 has 192 divisors, whose sum is σ = 25165903633920. Its totient is φ = 4100995104768.

The previous prime is 11101202021003. The next prime is 11101202021027. The reversal of 11101202021020 is 2012020210111.

It is a super-2 number, since 2×11101202021020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101202021027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1061599632 + ... + 1061610088.

It is an arithmetic number, because the mean of its divisors is an integer number (131072414760).

Almost surely, 2^{11101202021020} is an apocalyptic number.

11101202021020 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 11101202021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12582951816960).

11101202021020 is an abundant number, since it is smaller than the sum of its proper divisors (14064701612900).

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

11101202021020 is a wasteful number, since it uses less digits than its factorization.

11101202021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012 (or 11010 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11101202021020 its reverse (2012020210111), we get a palindrome (13113222231131).

The spelling of 11101202021020 in words is "eleven trillion, one hundred one billion, two hundred two million, twenty-one thousand, twenty".