221121121112002 has 8 divisors (see below), whose sum is σ = 331777460390976. Its totient is φ = 110528634315012.

The previous prime is 221121121111967. The next prime is 221121121112147. The reversal of 221121121112002 is 200211121121122.

It is a happy number.

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

It is an unprimeable number.

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, 15963111838 + ... + 15963125689.

It is an arithmetic number, because the mean of its divisors is an integer number (41472182548872).

Almost surely, 2^{221121121112002} is an apocalyptic number.

221121121112002 is a deficient number, since it is larger than the sum of its proper divisors (110656339278974).

221121121112002 is a wasteful number, since it uses less digits than its factorization.

221121121112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31926240992.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 221121121112002 its reverse (200211121121122), we get a palindrome (421332242233124).

The spelling of 221121121112002 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, two".