1021231201 has 8 divisors (see below), whose sum is σ = 1057147200. Its totient is φ = 985362000.

The previous prime is 1021231163. The next prime is 1021231217. The reversal of 1021231201 is 1021321201.

1021231201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1021231201 - 2⁹ = 1021230689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021231801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36076 + ... + 57826.

It is an arithmetic number, because the mean of its divisors is an integer number (132143400).

Almost surely, 2^1021231201 is an apocalyptic number.

It is an amenable number.

1021231201 is a deficient number, since it is larger than the sum of its proper divisors (35915999).

1021231201 is a wasteful number, since it uses less digits than its factorization.

1021231201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23399.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1021231201 is about 31956.7082316061. The cubic root of 1021231201 is about 1007.0275646458.

Adding to 1021231201 its reverse (1021321201), we get a palindrome (2042552402).

Subtracting 1021231201 from its reverse (1021321201), we obtain a square (90000 = 300²).

The spelling of 1021231201 in words is "one billion, twenty-one million, two hundred thirty-one thousand, two hundred one".