1220884190 has 16 divisors (see below), whose sum is σ = 2256986592. Its totient is φ = 475154784.

The previous prime is 1220884187. The next prime is 1220884213. The reversal of 1220884190 is 914880221.

It is a super-2 number, since 2×1220884190² = 2981116410783912200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220884190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1649474 + ... + 1650213.

It is an arithmetic number, because the mean of its divisors is an integer number (141061662).

Almost surely, 2^1220884190 is an apocalyptic number.

1220884190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220884190 is a deficient number, since it is larger than the sum of its proper divisors (1036102402).

1220884190 is a wasteful number, since it uses less digits than its factorization.

1220884190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299731.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1220884190 is about 34941.1532437039. The cubic root of 1220884190 is about 1068.7878053268.

The spelling of 1220884190 in words is "one billion, two hundred twenty million, eight hundred eighty-four thousand, one hundred ninety".