20210222112 has 24 divisors (see below), whose sum is σ = 53051833296. Its totient is φ = 6736740672.

The previous prime is 20210222111. The next prime is 20210222117. The reversal of 20210222112 is 21122201202.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 20210222091 and 20210222100.

It is not an unprimeable number, because it can be changed into a prime (20210222111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105261478 + ... + 105261669.

It is an arithmetic number, because the mean of its divisors is an integer number (2210493054).

Almost surely, 2^20210222112 is an apocalyptic number.

It is an amenable number.

20210222112 is an abundant number, since it is smaller than the sum of its proper divisors (32841611184).

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

20210222112 is a wasteful number, since it uses less digits than its factorization.

20210222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210523160 (or 210523152 counting only the distinct ones).

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

Adding to 20210222112 its reverse (21122201202), we get a palindrome (41332423314).

The spelling of 20210222112 in words is "twenty billion, two hundred ten million, two hundred twenty-two thousand, one hundred twelve".