1210000000050 has 36 divisors (see below), whose sum is σ = 3250866668010. Its totient is φ = 322666666560.

The previous prime is 1210000000021. The next prime is 1210000000073. The reversal of 1210000000050 is 500000000121.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 663170808609 + 546829191441 = 814353^2 + 739479^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1344443995 + ... + 1344444894.

Almost surely, 2^{1210000000050} is an apocalyptic number.

1210000000050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210000000050 is an abundant number, since it is smaller than the sum of its proper divisors (2040866667960).

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

1210000000050 is a wasteful number, since it uses less digits than its factorization.

1210000000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688888907 (or 2688888899 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

Adding to 1210000000050 its reverse (500000000121), we get a palindrome (1710000000171).

The spelling of 1210000000050 in words is "one trillion, two hundred ten billion, fifty", and thus it is an aban number.