1223010435550 has 24 divisors (see below), whose sum is σ = 2274832526400. Its totient is φ = 489197052480.

The previous prime is 1223010435509. The next prime is 1223010435571. The reversal of 1223010435550 is 555340103221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4516386 + ... + 4779514.

It is an arithmetic number, because the mean of its divisors is an integer number (94784688600).

Almost surely, 2^{1223010435550} is an apocalyptic number.

1223010435550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223010435550 is a deficient number, since it is larger than the sum of its proper divisors (1051822090850).

1223010435550 is a wasteful number, since it uses less digits than its factorization.

1223010435550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356100 (or 356095 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 1223010435550 its reverse (555340103221), we get a palindrome (1778350538771).

The spelling of 1223010435550 in words is "one trillion, two hundred twenty-three billion, ten million, four hundred thirty-five thousand, five hundred fifty".