211021212122112 has 88 divisors (see below), whose sum is σ = 642798245919616. Its totient is φ = 60291774885888.

The previous prime is 211021212122003. The next prime is 211021212122173. The reversal of 211021212122112 is 211221212120112.

211021212122112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 4906535698 + ... + 4906578705.

Almost surely, 2^{211021212122112} is an apocalyptic number.

It is an amenable number.

211021212122112 is an abundant number, since it is smaller than the sum of its proper divisors (431777033797504).

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

211021212122112 is an equidigital number, since it uses as much as digits as its factorization.

211021212122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9813114433 (or 9813114415 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211021212122112 its reverse (211221212120112), we get a palindrome (422242424242224).

The spelling of 211021212122112 in words is "two hundred eleven trillion, twenty-one billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twelve".