1107205121 has 16 divisors (see below), whose sum is σ = 1281469248. Its totient is φ = 945446400.

The previous prime is 1107205117. The next prime is 1107205129. The reversal of 1107205121 is 1215027011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1107205121 - 2² = 1107205117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1107205093 and 1107205102.

It is not an unprimeable number, because it can be changed into a prime (1107205129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92141 + ... + 103461.

It is an arithmetic number, because the mean of its divisors is an integer number (80091828).

Almost surely, 2^1107205121 is an apocalyptic number.

1107205121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1107205121 is a deficient number, since it is larger than the sum of its proper divisors (174264127).

1107205121 is a wasteful number, since it uses less digits than its factorization.

1107205121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11872.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 1107205121 is about 33274.6918994001. The cubic root of 1107205121 is about 1034.5290617342.

The spelling of 1107205121 in words is "one billion, one hundred seven million, two hundred five thousand, one hundred twenty-one".