1100221220210 has 24 divisors (see below), whose sum is σ = 2303728515180. Its totient is φ = 377218703904.

The previous prime is 1100221220177. The next prime is 1100221220237. The reversal of 1100221220210 is 120221220011.

It can be written as a sum of positive squares in 2 ways, for example, as 1074035831449 + 26185388761 = 1036357^2 + 161819^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122674225 + ... + 1122675204.

Almost surely, 2^{1100221220210} is an apocalyptic number.

1100221220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1100221220210 is an abundant number, since it is smaller than the sum of its proper divisors (1203507294970).

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

1100221220210 is a wasteful number, since it uses less digits than its factorization.

1100221220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245349450 (or 2245349443 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1100221220210 its reverse (120221220011), we get a palindrome (1220442440221).

The spelling of 1100221220210 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred twenty thousand, two hundred ten".