1223690459422 has 4 divisors (see below), whose sum is σ = 1835535689136. Its totient is φ = 611845229710.

The previous prime is 1223690459371. The next prime is 1223690459449. The reversal of 1223690459422 is 2249540963221.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305922614854 + ... + 305922614857.

It is an arithmetic number, because the mean of its divisors is an integer number (458883922284).

Almost surely, 2^{1223690459422} is an apocalyptic number.

1223690459422 is a deficient number, since it is larger than the sum of its proper divisors (611845229714).

1223690459422 is an equidigital number, since it uses as much as digits as its factorization.

1223690459422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611845229713.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 1223690459422 in words is "one trillion, two hundred twenty-three billion, six hundred ninety million, four hundred fifty-nine thousand, four hundred twenty-two".