1100616220 has 24 divisors (see below), whose sum is σ = 2521412208. Its totient is φ = 400224000.

The previous prime is 1100616161. The next prime is 1100616239. The reversal of 1100616220 is 226160011.

It is a super-2 number, since 2×1100616220² = 2422712127454176800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501181 + ... + 2501620.

It is an arithmetic number, because the mean of its divisors is an integer number (105058842).

Almost surely, 2^1100616220 is an apocalyptic number.

1100616220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100616220 is an abundant number, since it is smaller than the sum of its proper divisors (1420795988).

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

1100616220 is a wasteful number, since it uses less digits than its factorization.

1100616220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002821 (or 5002819 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1100616220 is about 33175.5364689103. The cubic root of 1100616220 is about 1032.4728405795.

Adding to 1100616220 its reverse (226160011), we get a palindrome (1326776231).

It can be divided in two parts, 110061 and 6220, that added together give a square (116281 = 341²).

The spelling of 1100616220 in words is "one billion, one hundred million, six hundred sixteen thousand, two hundred twenty".