1223446788890 has 16 divisors (see below), whose sum is σ = 2331745645032. Its totient is φ = 460591732224.

The previous prime is 1223446788877. The next prime is 1223446788901. The reversal of 1223446788890 is 988876443221.

It can be written as a sum of positive squares in 4 ways, for example, as 984248520649 + 239198268241 = 992093^2 + 489079^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3598372739 + ... + 3598373078.

Almost surely, 2^{1223446788890} is an apocalyptic number.

1223446788890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223446788890 is a deficient number, since it is larger than the sum of its proper divisors (1108298856142).

1223446788890 is a wasteful number, since it uses less digits than its factorization.

1223446788890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7196745841.

The product of its (nonzero) digits is 37158912, while the sum is 62.

The spelling of 1223446788890 in words is "one trillion, two hundred twenty-three billion, four hundred forty-six million, seven hundred eighty-eight thousand, eight hundred ninety".