20222201212 has 6 divisors (see below), whose sum is σ = 35388852128. Its totient is φ = 10111100604.

The previous prime is 20222201191. The next prime is 20222201221. The reversal of 20222201212 is 21210222202.

It is a super-2 number, since 2×20222201212² (a number of 21 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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527775148 + ... + 2527775155.

Almost surely, 2^20222201212 is an apocalyptic number.

It is an amenable number.

20222201212 is a deficient number, since it is larger than the sum of its proper divisors (15166650916).

20222201212 is a wasteful number, since it uses less digits than its factorization.

20222201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055550307 (or 5055550305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20222201212 its reverse (21210222202), we get a palindrome (41432423414).

The spelling of 20222201212 in words is "twenty billion, two hundred twenty-two million, two hundred one thousand, two hundred twelve".