1100021022 has 24 divisors (see below), whose sum is σ = 2384642520. Its totient is φ = 366479280.

The previous prime is 1100021003. The next prime is 1100021029. The reversal of 1100021022 is 2201200011.

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 = 1100020995 and 1100021013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100021029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21004 + ... + 51392.

It is an arithmetic number, because the mean of its divisors is an integer number (99360105).

Almost surely, 2^1100021022 is an apocalyptic number.

1100021022 is an abundant number, since it is smaller than the sum of its proper divisors (1284621498).

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

1100021022 is a wasteful number, since it uses less digits than its factorization.

1100021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32408 (or 32405 counting only the distinct ones).

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

The square root of 1100021022 is about 33166.5648206141. The cubic root of 1100021022 is about 1032.2866913516.

Adding to 1100021022 its reverse (2201200011), we get a palindrome (3301221033).

The spelling of 1100021022 in words is "one billion, one hundred million, twenty-one thousand, twenty-two".