1225000231 has 16 divisors (see below), whose sum is σ = 1532415808. Its totient is φ = 953337600.

The previous prime is 1225000213. The next prime is 1225000241. The reversal of 1225000231 is 1320005221.

It is a cyclic number.

It is not a de Polignac number, because 1225000231 - 2⁵ = 1225000199 is a prime.

It is a super-2 number, since 2×1225000231² = 3001251131900106722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225000201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104790 + ... + 115891.

It is an arithmetic number, because the mean of its divisors is an integer number (95775988).

Almost surely, 2^1225000231 is an apocalyptic number.

1225000231 is a deficient number, since it is larger than the sum of its proper divisors (307415577).

1225000231 is a wasteful number, since it uses less digits than its factorization.

1225000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220762.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1225000231 is about 35000.0032999998. The cubic root of 1225000231 is about 1069.9875478214.

Adding to 1225000231 its reverse (1320005221), we get a palindrome (2545005452).

The spelling of 1225000231 in words is "one billion, two hundred twenty-five million, two hundred thirty-one", and thus it is an aban number.