1212610650 has 48 divisors (see below), whose sum is σ = 3010575168. Its totient is φ = 323008000.

The previous prime is 1212610649. The next prime is 1212610673. The reversal of 1212610650 is 560162121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212610650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150730 + ... + 158570.

It is an arithmetic number, because the mean of its divisors is an integer number (62720316).

Almost surely, 2^1212610650 is an apocalyptic number.

1212610650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212610650 is an abundant number, since it is smaller than the sum of its proper divisors (1797964518).

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

1212610650 is a wasteful number, since it uses less digits than its factorization.

1212610650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8887 (or 8882 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1212610650 is about 34822.5594981185. The cubic root of 1212610650 is about 1066.3680538896.

Adding to 1212610650 its reverse (560162121), we get a palindrome (1772772771).

The spelling of 1212610650 in words is "one billion, two hundred twelve million, six hundred ten thousand, six hundred fifty".