1102210020 has 144 divisors (see below), whose sum is σ = 3457778688. Its totient is φ = 283979520.

The previous prime is 1102210009. The next prime is 1102210049. The reversal of 1102210020 is 200122011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1102209984 and 1102210011.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1111725 + ... + 1112715.

It is an arithmetic number, because the mean of its divisors is an integer number (24012352).

Almost surely, 2^1102210020 is an apocalyptic number.

1102210020 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 1102210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1728889344).

1102210020 is an abundant number, since it is smaller than the sum of its proper divisors (2355568668).

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

1102210020 is a wasteful number, since it uses less digits than its factorization.

1102210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1102210020 is about 33199.5484909057. The cubic root of 1102210020 is about 1032.9709741140.

Adding to 1102210020 its reverse (200122011), we get a palindrome (1302332031).

The spelling of 1102210020 in words is "one billion, one hundred two million, two hundred ten thousand, twenty".