1242225915290 has 16 divisors (see below), whose sum is σ = 2236157114112. Its totient is φ = 496856929104.

The previous prime is 1242225915283. The next prime is 1242225915311. The reversal of 1242225915290 is 925195222421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4023314 + ... + 4321053.

It is an arithmetic number, because the mean of its divisors is an integer number (139759819632).

Almost surely, 2^{1242225915290} is an apocalyptic number.

1242225915290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242225915290 is a deficient number, since it is larger than the sum of its proper divisors (993931198822).

1242225915290 is a wasteful number, since it uses less digits than its factorization.

1242225915290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8359261.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 1242225915290 in words is "one trillion, two hundred forty-two billion, two hundred twenty-five million, nine hundred fifteen thousand, two hundred ninety".