20221102212 has 24 divisors (see below), whose sum is σ = 48457777536. Its totient is φ = 6558195168.

The previous prime is 20221102177. The next prime is 20221102261. The reversal of 20221102212 is 21220112202.

It is a junction number, because it is equal to n+sod(n) for n = 20221102191 and 20221102200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22771068 + ... + 22771955.

It is an arithmetic number, because the mean of its divisors is an integer number (2019074064).

Almost surely, 2^20221102212 is an apocalyptic number.

It is an amenable number.

20221102212 is an abundant number, since it is smaller than the sum of its proper divisors (28236675324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20221102212 is a wasteful number, since it uses less digits than its factorization.

20221102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45543067 (or 45543065 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20221102212 its reverse (21220112202), we get a palindrome (41441214414).

The spelling of 20221102212 in words is "twenty billion, two hundred twenty-one million, one hundred two thousand, two hundred twelve".