1225012510 has 8 divisors (see below), whose sum is σ = 2205022536. Its totient is φ = 490005000.

The previous prime is 1225012483. The next prime is 1225012511. The reversal of 1225012510 is 152105221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225012511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61250616 + ... + 61250635.

It is an arithmetic number, because the mean of its divisors is an integer number (275627817).

Almost surely, 2^1225012510 is an apocalyptic number.

1225012510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225012510 is a deficient number, since it is larger than the sum of its proper divisors (980010026).

1225012510 is a wasteful number, since it uses less digits than its factorization.

1225012510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122501258.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1225012510 is about 35000.1787138294. The cubic root of 1225012510 is about 1069.9911228774.

Adding to 1225012510 its reverse (152105221), we get a palindrome (1377117731).

The spelling of 1225012510 in words is "one billion, two hundred twenty-five million, twelve thousand, five hundred ten".