1201151001 has 8 divisors (see below), whose sum is σ = 1602420480. Its totient is φ = 800324432.

The previous prime is 1201150999. The next prime is 1201151023. The reversal of 1201151001 is 1001511021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201151001 - 2¹ = 1201150999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201151041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104346 + ... + 115283.

It is an arithmetic number, because the mean of its divisors is an integer number (200302560).

Almost surely, 2^1201151001 is an apocalyptic number.

It is an amenable number.

1201151001 is a deficient number, since it is larger than the sum of its proper divisors (401269479).

1201151001 is a wasteful number, since it uses less digits than its factorization.

1201151001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221455.

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 1201151001 is about 34657.6254379898. The cubic root of 1201151001 is about 1062.9982164673.

Adding to 1201151001 its reverse (1001511021), we get a palindrome (2202662022).

The spelling of 1201151001 in words is "one billion, two hundred one million, one hundred fifty-one thousand, one".