20211211210202 has 16 divisors (see below), whose sum is σ = 30329123237280. Its totient is φ = 10101503921808.

The previous prime is 20211211210133. The next prime is 20211211210231. The reversal of 20211211210202 is 20201211211202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96453248 + ... + 96662564.

It is an arithmetic number, because the mean of its divisors is an integer number (1895570202330).

Almost surely, 2^{20211211210202} is an apocalyptic number.

20211211210202 is a deficient number, since it is larger than the sum of its proper divisors (10117912027078).

20211211210202 is a wasteful number, since it uses less digits than its factorization.

20211211210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228685.

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

Adding to 20211211210202 its reverse (20201211211202), we get a palindrome (40412422421404).

It can be divided in two parts, 2021121 and 1210202, that added together give a palindrome (3231323).

The spelling of 20211211210202 in words is "twenty trillion, two hundred eleven billion, two hundred eleven million, two hundred ten thousand, two hundred two".