1219669221888 has 1280 divisors, whose sum is σ = 4232675758080. Its totient is φ = 343985356800.

The previous prime is 1219669221877. The next prime is 1219669221907. The reversal of 1219669221888 is 8881229669121.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12573909456 + ... + 12573909552.

It is an arithmetic number, because the mean of its divisors is an integer number (3306777936).

Almost surely, 2^{1219669221888} is an apocalyptic number.

1219669221888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1219669221888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2116337879040).

1219669221888 is an abundant number, since it is smaller than the sum of its proper divisors (3013006536192).

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

1219669221888 is a wasteful number, since it uses less digits than its factorization.

1219669221888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 244 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The spelling of 1219669221888 in words is "one trillion, two hundred nineteen billion, six hundred sixty-nine million, two hundred twenty-one thousand, eight hundred eighty-eight".