11030111220 has 48 divisors (see below), whose sum is σ = 30892978368. Its totient is φ = 2940537600.

The previous prime is 11030111203. The next prime is 11030111251. The reversal of 11030111220 is 2211103011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11030111196 and 11030111205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207192 + ... + 254928.

It is an arithmetic number, because the mean of its divisors is an integer number (643603716).

Almost surely, 2^11030111220 is an apocalyptic number.

11030111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11030111220 is an abundant number, since it is smaller than the sum of its proper divisors (19862867148).

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

11030111220 is a wasteful number, since it uses less digits than its factorization.

11030111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51600 (or 51598 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11030111220 its reverse (2211103011), we get a palindrome (13241214231).

The spelling of 11030111220 in words is "eleven billion, thirty million, one hundred eleven thousand, two hundred twenty".