1102220020 has 96 divisors (see below), whose sum is σ = 2668417920. Its totient is φ = 378224640.

The previous prime is 1102220003. The next prime is 1102220027. The reversal of 1102220020 is 200222011.

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 = 1102219979 and 1102220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102220027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1909972 + ... + 1910548.

It is an arithmetic number, because the mean of its divisors is an integer number (27796020).

Almost surely, 2^1102220020 is an apocalyptic number.

1102220020 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 1102220020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334208960).

1102220020 is an abundant number, since it is smaller than the sum of its proper divisors (1566197900).

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

1102220020 is a wasteful number, since it uses less digits than its factorization.

1102220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1102220020 is about 33199.6990950219. The cubic root of 1102220020 is about 1032.9740980433.

Adding to 1102220020 its reverse (200222011), we get a palindrome (1302442031).

It can be divided in two parts, 1102 and 220020, that added together give a palindrome (221122).

The spelling of 1102220020 in words is "one billion, one hundred two million, two hundred twenty thousand, twenty".