1105125220 has 24 divisors (see below), whose sum is σ = 2321739000. Its totient is φ = 441864192.

The previous prime is 1105125181. The next prime is 1105125221. The reversal of 1105125220 is 225215011.

It can be written as a sum of positive squares in 4 ways, for example, as 128187684 + 976937536 = 11322^2 + 31256^2 .

It is not an unprimeable number, because it can be changed into a prime (1105125221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43506 + ... + 64054.

It is an arithmetic number, because the mean of its divisors is an integer number (96739125).

Almost surely, 2^1105125220 is an apocalyptic number.

1105125220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105125220 is an abundant number, since it is smaller than the sum of its proper divisors (1216613780).

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

1105125220 is a wasteful number, since it uses less digits than its factorization.

1105125220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23247 (or 23245 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1105125220 is about 33243.4237105627. The cubic root of 1105125220 is about 1033.8808630275.

The spelling of 1105125220 in words is "one billion, one hundred five million, one hundred twenty-five thousand, two hundred twenty".