20210212112 has 20 divisors (see below), whose sum is σ = 39820970640. Its totient is φ = 9933832608.

The previous prime is 20210212097. The next prime is 20210212117. The reversal of 20210212112 is 21121201202.

It is a super-2 number, since 2×20210212112² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20210212117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10703618 + ... + 10705505.

It is an arithmetic number, because the mean of its divisors is an integer number (1991048532).

Almost surely, 2^20210212112 is an apocalyptic number.

It is an amenable number.

20210212112 is a deficient number, since it is larger than the sum of its proper divisors (19610758528).

20210212112 is a wasteful number, since it uses less digits than its factorization.

20210212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21409190 (or 21409184 counting only the distinct ones).

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

Adding to 20210212112 its reverse (21121201202), we get a palindrome (41331413314).

The spelling of 20210212112 in words is "twenty billion, two hundred ten million, two hundred twelve thousand, one hundred twelve".