1251322415010 has 64 divisors (see below), whose sum is σ = 3427045200000. Its totient is φ = 324667434816.

The previous prime is 1251322414999. The next prime is 1251322415053. The reversal of 1251322415010 is 105142231521.

It is a happy number.

1251322415010 is a `hidden beast` number, since 1 + 2 + 5 + 132 + 24 + 1 + 501 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62618760 + ... + 62638739.

It is an arithmetic number, because the mean of its divisors is an integer number (53547581250).

Almost surely, 2^{1251322415010} is an apocalyptic number.

1251322415010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1251322415010 is an abundant number, since it is smaller than the sum of its proper divisors (2175722784990).

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

1251322415010 is a wasteful number, since it uses less digits than its factorization.

1251322415010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125257552 (or 125257546 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 1251322415010 its reverse (105142231521), we get a palindrome (1356464646531).

The spelling of 1251322415010 in words is "one trillion, two hundred fifty-one billion, three hundred twenty-two million, four hundred fifteen thousand, ten".