1201241001 has 16 divisors (see below), whose sum is σ = 1685069568. Its totient is φ = 760176000.

The previous prime is 1201240973. The next prime is 1201241011. The reversal of 1201241001 is 1001421021.

It is a happy number.

It is not a de Polignac number, because 1201241001 - 2⁵ = 1201240969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201241011) 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, 127425 + ... + 136526.

It is an arithmetic number, because the mean of its divisors is an integer number (105316848).

Almost surely, 2^1201241001 is an apocalyptic number.

It is an amenable number.

1201241001 is a deficient number, since it is larger than the sum of its proper divisors (483828567).

1201241001 is a wasteful number, since it uses less digits than its factorization.

1201241001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264032.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1201241001 is about 34658.9238292247. The cubic root of 1201241001 is about 1063.0247652942.

Adding to 1201241001 its reverse (1001421021), we get a palindrome (2202662022).

The spelling of 1201241001 in words is "one billion, two hundred one million, two hundred forty-one thousand, one".