12234456678890 has 32 divisors (see below), whose sum is σ = 22255754512320. Its totient is φ = 4841872510464.

The previous prime is 12234456678859. The next prime is 12234456678937. The reversal of 12234456678890 is 9887665443221.

It is a super-2 number, since 2×12234456678890² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1325501 + ... + 5121119.

It is an arithmetic number, because the mean of its divisors is an integer number (695492328510).

It is a 2-persistent number, because it is pandigital, and so is 2⋅12234456678890 = 24468913357780, but 3⋅12234456678890 = 36703370036670 is not.

Almost surely, 2^{12234456678890} is an apocalyptic number.

12234456678890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12234456678890 is a deficient number, since it is larger than the sum of its proper divisors (10021297833430).

12234456678890 is a wasteful number, since it uses less digits than its factorization.

12234456678890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799046.

The product of its (nonzero) digits is 139345920, while the sum is 65.

The spelling of 12234456678890 in words is "twelve trillion, two hundred thirty-four billion, four hundred fifty-six million, six hundred seventy-eight thousand, eight hundred ninety".