20210221112 has 96 divisors (see below), whose sum is σ = 42933823200. Its totient is φ = 8885127168.

The previous prime is 20210221079. The next prime is 20210221123. The reversal of 20210221112 is 21112201202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3581189 + ... + 3586827.

It is an arithmetic number, because the mean of its divisors is an integer number (447227325).

Almost surely, 2^20210221112 is an apocalyptic number.

It is an amenable number.

20210221112 is an abundant number, since it is smaller than the sum of its proper divisors (22723602088).

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

20210221112 is a wasteful number, since it uses less digits than its factorization.

20210221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20210221112 its reverse (21112201202), we get a palindrome (41322422314).

The spelling of 20210221112 in words is "twenty billion, two hundred ten million, two hundred twenty-one thousand, one hundred twelve".