1204220321011 has 8 divisors (see below), whose sum is σ = 1209338956800. Its totient is φ = 1199102352840.

The previous prime is 1204220320991. The next prime is 1204220321021. The reversal of 1204220321011 is 1101230224021.

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 1204220321011 - 2¹¹ = 1204220318963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204220321011.

It is not an unprimeable number, because it can be changed into a prime (1204220321021) 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, 3631446 + ... + 3949156.

It is an arithmetic number, because the mean of its divisors is an integer number (151167369600).

Almost surely, 2^{1204220321011} is an apocalyptic number.

1204220321011 is a deficient number, since it is larger than the sum of its proper divisors (5118635789).

1204220321011 is a wasteful number, since it uses less digits than its factorization.

1204220321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333809.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1204220321011 its reverse (1101230224021), we get a palindrome (2305450545032).

The spelling of 1204220321011 in words is "one trillion, two hundred four billion, two hundred twenty million, three hundred twenty-one thousand, eleven".