1219227686850 has 24 divisors (see below), whose sum is σ = 3023684663760. Its totient is φ = 325127383120.

The previous prime is 1219227686843. The next prime is 1219227686851. The reversal of 1219227686850 is 586867229121.

It is not an unprimeable number, because it can be changed into a prime (1219227686851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4064092140 + ... + 4064092439.

It is an arithmetic number, because the mean of its divisors is an integer number (125986860990).

Almost surely, 2^{1219227686850} is an apocalyptic number.

1219227686850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1219227686850 is an abundant number, since it is smaller than the sum of its proper divisors (1804456976910).

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

1219227686850 is a wasteful number, since it uses less digits than its factorization.

1219227686850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8128184594 (or 8128184589 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 1219227686850 in words is "one trillion, two hundred nineteen billion, two hundred twenty-seven million, six hundred eighty-six thousand, eight hundred fifty".