1212650372740 has 24 divisors (see below), whose sum is σ = 2554754110272. Its totient is φ = 483500467680.

The previous prime is 1212650372711. The next prime is 1212650372749. The reversal of 1212650372740 is 472730562121.

It is a junction number, because it is equal to n+sod(n) for n = 1212650372693 and 1212650372702.

It is not an unprimeable number, because it can be changed into a prime (1212650372749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97473714 + ... + 97486153.

It is an arithmetic number, because the mean of its divisors is an integer number (106448087928).

Almost surely, 2^{1212650372740} is an apocalyptic number.

1212650372740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212650372740 is an abundant number, since it is smaller than the sum of its proper divisors (1342103737532).

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

1212650372740 is a wasteful number, since it uses less digits than its factorization.

1212650372740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194960187 (or 194960185 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 1212650372740 in words is "one trillion, two hundred twelve billion, six hundred fifty million, three hundred seventy-two thousand, seven hundred forty".