20211200222212 has 6 divisors (see below), whose sum is σ = 35369600388878. Its totient is φ = 10105600111104.

The previous prime is 20211200222201. The next prime is 20211200222251. The reversal of 20211200222212 is 21222200211202.

It can be written as a sum of positive squares in only one way, i.e., 18388522017856 + 1822678204356 = 4288184^2 + 1350066^2 .

It is a super-2 number, since 2×20211200222212² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20211200222212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526400027773 + ... + 2526400027780.

Almost surely, 2^{20211200222212} is an apocalyptic number.

It is an amenable number.

20211200222212 is a deficient number, since it is larger than the sum of its proper divisors (15158400166666).

20211200222212 is a wasteful number, since it uses less digits than its factorization.

20211200222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052800055557 (or 5052800055555 counting only the distinct ones).

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

Adding to 20211200222212 its reverse (21222200211202), we get a palindrome (41433400433414).

The spelling of 20211200222212 in words is "twenty trillion, two hundred eleven billion, two hundred million, two hundred twenty-two thousand, two hundred twelve".