1121102205 has 16 divisors (see below), whose sum is σ = 1794467520. Its totient is φ = 597686528.

The previous prime is 1121102189. The next prime is 1121102251. The reversal of 1121102205 is 5022011211.

It is a cyclic number.

It is not a de Polignac number, because 1121102205 - 2⁴ = 1121102189 is a prime.

It is a super-3 number, since 3×1121102205³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29029 + ... + 55541.

It is an arithmetic number, because the mean of its divisors is an integer number (112154220).

Almost surely, 2^1121102205 is an apocalyptic number.

1121102205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121102205 is a deficient number, since it is larger than the sum of its proper divisors (673365315).

1121102205 is a wasteful number, since it uses less digits than its factorization.

1121102205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29340.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1121102205 is about 33482.8643487979. The cubic root of 1121102205 is about 1038.8393749278.

Adding to 1121102205 its reverse (5022011211), we get a palindrome (6143113416).

The spelling of 1121102205 in words is "one billion, one hundred twenty-one million, one hundred two thousand, two hundred five".