11301211132220 has 96 divisors (see below), whose sum is σ = 24567624001536. Its totient is φ = 4363994880000.

The previous prime is 11301211132217. The next prime is 11301211132223. The reversal of 11301211132220 is 2223111210311.

It is an interprime number because it is at equal distance from previous prime (11301211132217) and next prime (11301211132223).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11301211132192 and 11301211132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11301211132223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62558225 + ... + 62738615.

It is an arithmetic number, because the mean of its divisors is an integer number (255912750016).

Almost surely, 2^{11301211132220} is an apocalyptic number.

11301211132220 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 11301211132220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12283812000768).

11301211132220 is an abundant number, since it is smaller than the sum of its proper divisors (13266412869316).

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

11301211132220 is a wasteful number, since it uses less digits than its factorization.

11301211132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181291 (or 181289 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11301211132220 its reverse (2223111210311), we get a palindrome (13524322342531).

The spelling of 11301211132220 in words is "eleven trillion, three hundred one billion, two hundred eleven million, one hundred thirty-two thousand, two hundred twenty".