20211210222112 has 48 divisors (see below), whose sum is σ = 48973317083712. Its totient is φ = 7995643603200.

The previous prime is 20211210222053. The next prime is 20211210222149. The reversal of 20211210222112 is 21122201211202.

It is a self number, because there is not a number n which added to its sum of digits gives 20211210222112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3470328514 + ... + 3470334337.

It is an arithmetic number, because the mean of its divisors is an integer number (1020277439244).

Almost surely, 2^{20211210222112} is an apocalyptic number.

It is an amenable number.

20211210222112 is an abundant number, since it is smaller than the sum of its proper divisors (28762106861600).

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

20211210222112 is a wasteful number, since it uses less digits than its factorization.

20211210222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940662881 (or 6940662873 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20211210222112 its reverse (21122201211202), we get a palindrome (41333411433314).

The spelling of 20211210222112 in words is "twenty trillion, two hundred eleven billion, two hundred ten million, two hundred twenty-two thousand, one hundred twelve".