1223421201234 has 16 divisors (see below), whose sum is σ = 2718713780640. Its totient is φ = 407807067060.

The previous prime is 1223421201229. The next prime is 1223421201263. The reversal of 1223421201234 is 4321021243221.

1223421201234 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 421 + 2 + 0 + 1 + 234 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1223421201198 and 1223421201207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11327974032 + ... + 11327974139.

It is an arithmetic number, because the mean of its divisors is an integer number (169919611290).

Almost surely, 2^{1223421201234} is an apocalyptic number.

1223421201234 is an abundant number, since it is smaller than the sum of its proper divisors (1495292579406).

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

1223421201234 is a wasteful number, since it uses less digits than its factorization.

1223421201234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22655948182 (or 22655948176 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1223421201234 its reverse (4321021243221), we get a palindrome (5544442444455).

The spelling of 1223421201234 in words is "one trillion, two hundred twenty-three billion, four hundred twenty-one million, two hundred one thousand, two hundred thirty-four".