221120021112002 has 4 divisors (see below), whose sum is σ = 331680031668006. Its totient is φ = 110560010556000.

The previous prime is 221120021111971. The next prime is 221120021112017. The reversal of 221120021112002 is 200211120021122.

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

It can be written as a sum of positive squares in only one way, i.e., 119787793347121 + 101332227764881 = 10944761^2 + 10066391^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55280005277999 + ... + 55280005278002.

Almost surely, 2^{221120021112002} is an apocalyptic number.

221120021112002 is a deficient number, since it is larger than the sum of its proper divisors (110560010556004).

221120021112002 is a wasteful number, since it uses less digits than its factorization.

221120021112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110560010556003.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221120021112002 its reverse (200211120021122), we get a palindrome (421331141133124).

The spelling of 221120021112002 in words is "two hundred twenty-one trillion, one hundred twenty billion, twenty-one million, one hundred twelve thousand, two".