1220220020110 has 128 divisors (see below), whose sum is σ = 2822579020800. Its totient is φ = 377198011008.

The previous prime is 1220220020039. The next prime is 1220220020113. The reversal of 1220220020110 is 110200220221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220220020113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1599169 + ... + 2235571.

It is an arithmetic number, because the mean of its divisors is an integer number (22051398600).

Almost surely, 2^{1220220020110} is an apocalyptic number.

1220220020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220220020110 is an abundant number, since it is smaller than the sum of its proper divisors (1602359000690).

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

1220220020110 is a wasteful number, since it uses less digits than its factorization.

1220220020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636487 (or 636473 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1220220020110 its reverse (110200220221), we get a palindrome (1330420240331).

The spelling of 1220220020110 in words is "one trillion, two hundred twenty billion, two hundred twenty million, twenty thousand, one hundred ten".