20211202222012 has 12 divisors (see below), whose sum is σ = 35395477785360. Its totient is φ = 10098208569056.

The previous prime is 20211202221961. The next prime is 20211202222061. The reversal of 20211202222012 is 21022220211202.

It is a super-2 number, since 2×20211202222012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1848129337 + ... + 1848140272.

It is an arithmetic number, because the mean of its divisors is an integer number (2949623148780).

Almost surely, 2^{20211202222012} is an apocalyptic number.

It is an amenable number.

20211202222012 is a deficient number, since it is larger than the sum of its proper divisors (15184275563348).

20211202222012 is a wasteful number, since it uses less digits than its factorization.

20211202222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696270980 (or 3696270978 counting only the distinct ones).

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

Adding to 20211202222012 its reverse (21022220211202), we get a palindrome (41233422433214).

The spelling of 20211202222012 in words is "twenty trillion, two hundred eleven billion, two hundred two million, two hundred twenty-two thousand, twelve".