1223406679229 has 8 divisors (see below), whose sum is σ = 1398234643968. Its totient is φ = 1048592610000.

The previous prime is 1223406679211. The next prime is 1223406679241. The reversal of 1223406679229 is 9229766043221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223406679229 - 2²⁸ = 1223138243773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223406678229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3284522 + ... + 3637979.

It is an arithmetic number, because the mean of its divisors is an integer number (174779330496).

Almost surely, 2^{1223406679229} is an apocalyptic number.

It is an amenable number.

1223406679229 is a deficient number, since it is larger than the sum of its proper divisors (174827964739).

1223406679229 is an equidigital number, since it uses as much as digits as its factorization.

1223406679229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947755.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 1223406679229 in words is "one trillion, two hundred twenty-three billion, four hundred six million, six hundred seventy-nine thousand, two hundred twenty-nine".