1086221100 has 72 divisors (see below), whose sum is σ = 3251198160. Its totient is φ = 279668480.

The previous prime is 1086221063. The next prime is 1086221107. The reversal of 1086221100 is 11226801.

It is not an unprimeable number, because it can be changed into a prime (1086221107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53727 + ... + 71126.

It is an arithmetic number, because the mean of its divisors is an integer number (45155530).

Almost surely, 2^1086221100 is an apocalyptic number.

1086221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1086221100 is an abundant number, since it is smaller than the sum of its proper divisors (2164977060).

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

1086221100 is a wasteful number, since it uses less digits than its factorization.

1086221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124899 (or 124892 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1086221100 is about 32957.8685597233. The cubic root of 1086221100 is about 1027.9517847957.

Adding to 1086221100 its reverse (11226801), we get a palindrome (1097447901).

The spelling of 1086221100 in words is "one billion, eighty-six million, two hundred twenty-one thousand, one hundred".