20111221000202 has 16 divisors (see below), whose sum is σ = 30521208804192. Its totient is φ = 9937848757200.

The previous prime is 20111221000177. The next prime is 20111221000217. The reversal of 20111221000202 is 20200012211102.

It is a super-2 number, since 2×20111221000202² (a number of 27 digits) contains 22 as substring.

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, 90895448 + ... + 91116435.

It is an arithmetic number, because the mean of its divisors is an integer number (1907575550262).

Almost surely, 2^{20111221000202} is an apocalyptic number.

20111221000202 is a deficient number, since it is larger than the sum of its proper divisors (10409987803990).

20111221000202 is a wasteful number, since it uses less digits than its factorization.

20111221000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182012533.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20111221000202 its reverse (20200012211102), we get a palindrome (40311233211304).

The spelling of 20111221000202 in words is "twenty trillion, one hundred eleven billion, two hundred twenty-one million, two hundred two", and thus it is an aban number.