11230202231220 has 384 divisors, whose sum is σ = 36757749030912. Its totient is φ = 2509039411200.

The previous prime is 11230202231179. The next prime is 11230202231231. The reversal of 11230202231220 is 2213220203211.

It is a super-2 number, since 2×11230202231220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1485276240 + ... + 1485283800.

It is an arithmetic number, because the mean of its divisors is an integer number (95723304768).

Almost surely, 2^{11230202231220} is an apocalyptic number.

11230202231220 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 11230202231220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18378874515456).

11230202231220 is an abundant number, since it is smaller than the sum of its proper divisors (25527546799692).

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

11230202231220 is a wasteful number, since it uses less digits than its factorization.

11230202231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8111 (or 8109 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11230202231220 its reverse (2213220203211), we get a palindrome (13443422434431).

The spelling of 11230202231220 in words is "eleven trillion, two hundred thirty billion, two hundred two million, two hundred thirty-one thousand, two hundred twenty".