1202021201 has 4 divisors (see below), whose sum is σ = 1213255152. Its totient is φ = 1190787252.

The previous prime is 1202021173. The next prime is 1202021207. The reversal of 1202021201 is 1021202021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1202021201 - 2¹⁰ = 1202020177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202021207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5616815 + ... + 5617028.

It is an arithmetic number, because the mean of its divisors is an integer number (303313788).

Almost surely, 2^1202021201 is an apocalyptic number.

It is an amenable number.

1202021201 is a deficient number, since it is larger than the sum of its proper divisors (11233951).

1202021201 is a wasteful number, since it uses less digits than its factorization.

1202021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11233950.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1202021201 is about 34670.1774007576. The cubic root of 1202021201 is about 1063.2548585695.

Adding to 1202021201 its reverse (1021202021), we get a palindrome (2223223222).

The spelling of 1202021201 in words is "one billion, two hundred two million, twenty-one thousand, two hundred one".