1012231201 has 4 divisors (see below), whose sum is σ = 1012379904. Its totient is φ = 1012082500.

The previous prime is 1012231183. The next prime is 1012231261. The reversal of 1012231201 is 1021322101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1021322101 = 1187 ⋅860423.

It is a cyclic number.

It is not a de Polignac number, because 1012231201 - 2⁹ = 1012230689 is a prime.

It is a super-2 number, since 2×1012231201² = 2049224008555804802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012231261) 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, 63625 + ... + 77926.

It is an arithmetic number, because the mean of its divisors is an integer number (253094976).

Almost surely, 2^1012231201 is an apocalyptic number.

It is an amenable number.

1012231201 is a deficient number, since it is larger than the sum of its proper divisors (148703).

1012231201 is an equidigital number, since it uses as much as digits as its factorization.

1012231201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148702.

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

The square root of 1012231201 is about 31815.5811042326. The cubic root of 1012231201 is about 1004.0605565634.

Adding to 1012231201 its reverse (1021322101), we get a palindrome (2033553302).

The spelling of 1012231201 in words is "one billion, twelve million, two hundred thirty-one thousand, two hundred one".