1100120001 has 32 divisors (see below), whose sum is σ = 1539806208. Its totient is φ = 697973760.

The previous prime is 1100119957. The next prime is 1100120003. The reversal of 1100120001 is 1000210011.

It is not a de Polignac number, because 1100120001 - 2²² = 1095925697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1100120003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1109616 + ... + 1110606.

It is an arithmetic number, because the mean of its divisors is an integer number (48118944).

Almost surely, 2^1100120001 is an apocalyptic number.

It is an amenable number.

1100120001 is a deficient number, since it is larger than the sum of its proper divisors (439686207).

1100120001 is a wasteful number, since it uses less digits than its factorization.

1100120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1100120001 is about 33168.0569373607. The cubic root of 1100120001 is about 1032.3176518630.

Adding to 1100120001 its reverse (1000210011), we get a palindrome (2100330012).

The spelling of 1100120001 in words is "one billion, one hundred million, one hundred twenty thousand, one".