11101020220 has 24 divisors (see below), whose sum is σ = 23314155984. Its totient is φ = 4440024576.

The previous prime is 11101020211. The next prime is 11101020241. The reversal of 11101020220 is 2202010111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11101020197 and 11101020206.

It is a congruent number.

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, 376867 + ... + 405253.

It is an arithmetic number, because the mean of its divisors is an integer number (971423166).

Almost surely, 2^11101020220 is an apocalyptic number.

11101020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101020220 is an abundant number, since it is smaller than the sum of its proper divisors (12213135764).

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

11101020220 is a wasteful number, since it uses less digits than its factorization.

11101020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47949 (or 47947 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11101020220 its reverse (2202010111), we get a palindrome (13303030331).

The spelling of 11101020220 in words is "eleven billion, one hundred one million, twenty thousand, two hundred twenty".