1233221025 has 12 divisors (see below), whose sum is σ = 2038925552. Its totient is φ = 657717840.

The previous prime is 1233220949. The next prime is 1233221029. The reversal of 1233221025 is 5201223321.

It is not a de Polignac number, because 1233221025 - 2¹³ = 1233212833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1233220992 and 1233221010.

It is not an unprimeable number, because it can be changed into a prime (1233221029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8221399 + ... + 8221548.

Almost surely, 2^1233221025 is an apocalyptic number.

1233221025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1233221025 is a deficient number, since it is larger than the sum of its proper divisors (805704527).

1233221025 is a wasteful number, since it uses less digits than its factorization.

1233221025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16442960 (or 16442955 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1233221025 is about 35117.2468311512. The cubic root of 1233221025 is about 1072.3757225279.

Adding to 1233221025 its reverse (5201223321), we get a palindrome (6434444346).

The spelling of 1233221025 in words is "one billion, two hundred thirty-three million, two hundred twenty-one thousand, twenty-five".