1222211324409 has 8 divisors (see below), whose sum is σ = 1715384315040. Its totient is φ = 771922941696.

The previous prime is 1222211324401. The next prime is 1222211324449. The reversal of 1222211324409 is 9044231122221.

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

It is not a de Polignac number, because 1222211324409 - 2³ = 1222211324401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222211324409.

It is not an unprimeable number, because it can be changed into a prime (1222211324401) 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, 10721151912 + ... + 10721152025.

It is an arithmetic number, because the mean of its divisors is an integer number (214423039380).

Almost surely, 2^{1222211324409} is an apocalyptic number.

1222211324409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1222211324409 is a deficient number, since it is larger than the sum of its proper divisors (493172990631).

1222211324409 is a wasteful number, since it uses less digits than its factorization.

1222211324409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21442303959.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 1222211324409 in words is "one trillion, two hundred twenty-two billion, two hundred eleven million, three hundred twenty-four thousand, four hundred nine".