1225011708 has 48 divisors (see below), whose sum is σ = 3189312000. Its totient is φ = 406620144.

The previous prime is 1225011703. The next prime is 1225011709. The reversal of 1225011708 is 8071105221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225011701) 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 15 ways as a sum of consecutive naturals, for example, 2083 + ... + 49541.

It is an arithmetic number, because the mean of its divisors is an integer number (66444000).

Almost surely, 2^1225011708 is an apocalyptic number.

1225011708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225011708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594656000).

1225011708 is an abundant number, since it is smaller than the sum of its proper divisors (1964300292).

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

1225011708 is a wasteful number, since it uses less digits than its factorization.

1225011708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47711 (or 47703 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 1225011708 is about 35000.1672567432. The cubic root of 1225011708 is about 1069.9908893742.

Adding to 1225011708 its reverse (8071105221), we get a palindrome (9296116929).

The spelling of 1225011708 in words is "one billion, two hundred twenty-five million, eleven thousand, seven hundred eight".