1225601112 has 32 divisors (see below), whose sum is σ = 3092644800. Its totient is φ = 404714784.

The previous prime is 1225601107. The next prime is 1225601119. The reversal of 1225601112 is 2111065221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225601119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236062 + ... + 241197.

It is an arithmetic number, because the mean of its divisors is an integer number (96645150).

Almost surely, 2^1225601112 is an apocalyptic number.

1225601112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225601112 is an abundant number, since it is smaller than the sum of its proper divisors (1867043688).

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

1225601112 is a wasteful number, since it uses less digits than its factorization.

1225601112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477375 (or 477371 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1225601112 is about 35008.5862610874. The cubic root of 1225601112 is about 1070.1624675417.

Adding to 1225601112 its reverse (2111065221), we get a palindrome (3336666333).

The spelling of 1225601112 in words is "one billion, two hundred twenty-five million, six hundred one thousand, one hundred twelve".