1225031412 has 24 divisors (see below), whose sum is σ = 3118262112. Its totient is φ = 371221600.

The previous prime is 1225031399. The next prime is 1225031413. The reversal of 1225031412 is 2141305221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225031413) 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, 4640139 + ... + 4640402.

It is an arithmetic number, because the mean of its divisors is an integer number (129927588).

Almost surely, 2^1225031412 is an apocalyptic number.

1225031412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225031412 is an abundant number, since it is smaller than the sum of its proper divisors (1893230700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225031412 is a wasteful number, since it uses less digits than its factorization.

1225031412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9280559 (or 9280557 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1225031412 is about 35000.4487399805. The cubic root of 1225031412 is about 1069.9966261867.

Adding to 1225031412 its reverse (2141305221), we get a palindrome (3366336633).

The spelling of 1225031412 in words is "one billion, two hundred twenty-five million, thirty-one thousand, four hundred twelve".