11310222020 has 24 divisors (see below), whose sum is σ = 23762923800. Its totient is φ = 4521906432.

The previous prime is 11310222013. The next prime is 11310222031. The reversal of 11310222020 is 2022201311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5051513476 + 6258708544 = 71074^2 + 79112^2 .

It is a super-2 number, since 2×11310222020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11310221986 and 11310222004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93575 + ... + 177134.

It is an arithmetic number, because the mean of its divisors is an integer number (990121825).

Almost surely, 2^11310222020 is an apocalyptic number.

11310222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11310222020 is an abundant number, since it is smaller than the sum of its proper divisors (12452701780).

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

11310222020 is a wasteful number, since it uses less digits than its factorization.

11310222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272807 (or 272805 counting only the distinct ones).

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

Adding to 11310222020 its reverse (2022201311), we get a palindrome (13332423331).

The spelling of 11310222020 in words is "eleven billion, three hundred ten million, two hundred twenty-two thousand, twenty".