1213226950 has 96 divisors (see below), whose sum is σ = 2576397600. Its totient is φ = 421355520.

The previous prime is 1213226923. The next prime is 1213226951. The reversal of 1213226950 is 596223121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213226951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2383296 + ... + 2383804.

It is an arithmetic number, because the mean of its divisors is an integer number (26837475).

Almost surely, 2^1213226950 is an apocalyptic number.

1213226950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213226950 is an abundant number, since it is smaller than the sum of its proper divisors (1363170650).

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

1213226950 is a wasteful number, since it uses less digits than its factorization.

1213226950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1213226950 is about 34831.4075225220. The cubic root of 1213226950 is about 1066.5486810688.

The spelling of 1213226950 in words is "one billion, two hundred thirteen million, two hundred twenty-six thousand, nine hundred fifty".