20211100221202 has 16 divisors (see below), whose sum is σ = 35018162950752. Its totient is φ = 8646459987520.

The previous prime is 20211100221197. The next prime is 20211100221239. The reversal of 20211100221202 is 20212200111202.

It is a happy number.

It is a super-3 number, since 3×20211100221202³ (a number of 41 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 27020187088 + ... + 27020187835.

It is an arithmetic number, because the mean of its divisors is an integer number (2188635184422).

Almost surely, 2^{20211100221202} is an apocalyptic number.

20211100221202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20211100221202 is a deficient number, since it is larger than the sum of its proper divisors (14807062729550).

20211100221202 is a wasteful number, since it uses less digits than its factorization.

20211100221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54040374953.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20211100221202 its reverse (20212200111202), we get a palindrome (40423300332404).

The spelling of 20211100221202 in words is "twenty trillion, two hundred eleven billion, one hundred million, two hundred twenty-one thousand, two hundred two".