20212021021222 has 16 divisors (see below), whose sum is σ = 30452043283200. Its totient is φ = 10061362546560.

The previous prime is 20212021021189. The next prime is 20212021021237. The reversal of 20212021021222 is 22212012021202.

It is a self number, because there is not a number n which added to its sum of digits gives 20212021021222.

It is a congruent number.

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, 3865222 + ... + 7440697.

It is an arithmetic number, because the mean of its divisors is an integer number (1903252705200).

Almost surely, 2^{20212021021222} is an apocalyptic number.

20212021021222 is a deficient number, since it is larger than the sum of its proper divisors (10240022261978).

20212021021222 is a wasteful number, since it uses less digits than its factorization.

20212021021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11309871.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20212021021222 its reverse (22212012021202), we get a palindrome (42424033042424).

The spelling of 20212021021222 in words is "twenty trillion, two hundred twelve billion, twenty-one million, twenty-one thousand, two hundred twenty-two".