11221101212020 has 96 divisors (see below), whose sum is σ = 28755064977408. Its totient is φ = 3594383033472.

The previous prime is 11221101211967. The next prime is 11221101212033. The reversal of 11221101212020 is 2021210112211.

It is a super-2 number, since 2×11221101212020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11221101211985 and 11221101212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40382634 + ... + 40659553.

It is an arithmetic number, because the mean of its divisors is an integer number (299531926848).

Almost surely, 2^{11221101212020} is an apocalyptic number.

11221101212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221101212020 is an abundant number, since it is smaller than the sum of its proper divisors (17533963765388).

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

11221101212020 is a wasteful number, since it uses less digits than its factorization.

11221101212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81042269 (or 81042267 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11221101212020 its reverse (2021210112211), we get a palindrome (13242311324231).

The spelling of 11221101212020 in words is "eleven trillion, two hundred twenty-one billion, one hundred one million, two hundred twelve thousand, twenty".