20201221111202 has 16 divisors (see below), whose sum is σ = 30551115276000. Its totient is φ = 10017606786720.

The previous prime is 20201221111199. The next prime is 20201221111219. The reversal of 20201221111202 is 20211112210202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22245827 + ... + 23136102.

It is an arithmetic number, because the mean of its divisors is an integer number (1909444704750).

Almost surely, 2^{20201221111202} is an apocalyptic number.

20201221111202 is a deficient number, since it is larger than the sum of its proper divisors (10349894164798).

20201221111202 is a wasteful number, since it uses less digits than its factorization.

20201221111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45383761.

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

Adding to 20201221111202 its reverse (20211112210202), we get a palindrome (40412333321404).

The spelling of 20201221111202 in words is "twenty trillion, two hundred one billion, two hundred twenty-one million, one hundred eleven thousand, two hundred two".