221204202402122 has 8 divisors (see below), whose sum is σ = 331829599742496. Its totient is φ = 110594335821292.

The previous prime is 221204202402121. The next prime is 221204202402217.

221204202402122 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 221204202402091 and 221204202402100.

It is not an unprimeable number, because it can be changed into a prime (221204202402121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3882654278 + ... + 3882711249.

It is an arithmetic number, because the mean of its divisors is an integer number (41478699967812).

Almost surely, 2^{221204202402122} is an apocalyptic number.

221204202402122 is a deficient number, since it is larger than the sum of its proper divisors (110625397340374).

221204202402122 is a wasteful number, since it uses less digits than its factorization.

221204202402122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765379772.

The product of its (nonzero) digits is 4096, while the sum is 26.

It can be divided in two parts, 22120420 and 2402122, that added together give a palindrome (24522542).

The spelling of 221204202402122 in words is "two hundred twenty-one trillion, two hundred four billion, two hundred two million, four hundred two thousand, one hundred twenty-two".