1213217050 has 96 divisors (see below), whose sum is σ = 2410809984. Its totient is φ = 453600000.

The previous prime is 1213217017. The next prime is 1213217081. The reversal of 1213217050 is 507123121.

It is a happy number.

It is a super-2 number, since 2×1213217050² = 2943791220821405000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8034475 + ... + 8034625.

It is an arithmetic number, because the mean of its divisors is an integer number (25112604).

Almost surely, 2^1213217050 is an apocalyptic number.

1213217050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213217050 is a deficient number, since it is larger than the sum of its proper divisors (1197592934).

1213217050 is a wasteful number, since it uses less digits than its factorization.

1213217050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1213217050 is about 34831.2654091120. The cubic root of 1213217050 is about 1066.5457800286.

The spelling of 1213217050 in words is "one billion, two hundred thirteen million, two hundred seventeen thousand, fifty".