10011232220 has 96 divisors (see below), whose sum is σ = 23188467456. Its totient is φ = 3600396800.

The previous prime is 10011232213. The next prime is 10011232223. The reversal of 10011232220 is 2223211001.

It is a happy number.

It is a super-2 number, since 2×10011232220² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10011232195 and 10011232204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011232223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16225352 + ... + 16225968.

It is an arithmetic number, because the mean of its divisors is an integer number (241546536).

Almost surely, 2^10011232220 is an apocalyptic number.

10011232220 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 10011232220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11594233728).

10011232220 is an abundant number, since it is smaller than the sum of its proper divisors (13177235236).

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

10011232220 is a wasteful number, since it uses less digits than its factorization.

10011232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10011232220 its reverse (2223211001), we get a palindrome (12234443221).

The spelling of 10011232220 in words is "ten billion, eleven million, two hundred thirty-two thousand, two hundred twenty".