1201421241 has 10 divisors (see below), whose sum is σ = 1794715802. Its totient is φ = 800947440.

The previous prime is 1201421239. The next prime is 1201421257. The reversal of 1201421241 is 1421241021.

1201421241 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 421 + 241 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1166564025 + 34857216 = 34155^2 + 5904^2 .

It is not a de Polignac number, because 1201421241 - 2¹ = 1201421239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201421141) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7416100 + ... + 7416261.

Almost surely, 2^1201421241 is an apocalyptic number.

It is an amenable number.

1201421241 is a deficient number, since it is larger than the sum of its proper divisors (593294561).

1201421241 is an equidigital number, since it uses as much as digits as its factorization.

1201421241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14832373 (or 14832364 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1201421241 is about 34661.5239278368. The cubic root of 1201421241 is about 1063.0779297581.

Adding to 1201421241 its reverse (1421241021), we get a palindrome (2622662262).

The spelling of 1201421241 in words is "one billion, two hundred one million, four hundred twenty-one thousand, two hundred forty-one".