211001220221112 has 48 divisors (see below), whose sum is σ = 575246152288080. Its totient is φ = 69867953712000.

The previous prime is 211001220221101. The next prime is 211001220221137. The reversal of 211001220221112 is 211122022100112.

211001220221112 is a `hidden beast` number, since 2 + 110 + 0 + 1 + 220 + 221 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9703871589 + ... + 9703893332.

It is an arithmetic number, because the mean of its divisors is an integer number (11984294839335).

Almost surely, 2^{211001220221112} is an apocalyptic number.

It is an amenable number.

211001220221112 is an abundant number, since it is smaller than the sum of its proper divisors (364244932066968).

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

211001220221112 is a wasteful number, since it uses less digits than its factorization.

211001220221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19407765084 (or 19407765077 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 211001220221112 its reverse (211122022100112), we get a palindrome (422123242321224).

The spelling of 211001220221112 in words is "two hundred eleven trillion, one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twelve".