211111020220112 has 10 divisors (see below), whose sum is σ = 409027601676498. Its totient is φ = 105555510110048.

The previous prime is 211111020220103. The next prime is 211111020220123. The reversal of 211111020220112 is 211022020111112.

It can be written as a sum of positive squares in only one way, i.e., 124423673375296 + 86687346844816 = 11154536^2 + 9310604^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6597219381863 + ... + 6597219381894.

Almost surely, 2^{211111020220112} is an apocalyptic number.

It is an amenable number.

211111020220112 is a deficient number, since it is larger than the sum of its proper divisors (197916581456386).

211111020220112 is a wasteful number, since it uses less digits than its factorization.

211111020220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13194438763765 (or 13194438763759 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211111020220112 its reverse (211022020111112), we get a palindrome (422133040331224).

The spelling of 211111020220112 in words is "two hundred eleven trillion, one hundred eleven billion, twenty million, two hundred twenty thousand, one hundred twelve".