221112020101012 has 12 divisors (see below), whose sum is σ = 387298766301300. Its totient is φ = 110455229729216.

The previous prime is 221112020101003. The next prime is 221112020101117. The reversal of 221112020101012 is 210101020211122.

It can be written as a sum of positive squares in 2 ways, for example, as 99012967676676 + 122099052424336 = 9950526^2 + 11049844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25195075387 + ... + 25195084162.

It is an arithmetic number, because the mean of its divisors is an integer number (32274897191775).

Almost surely, 2^{221112020101012} is an apocalyptic number.

It is an amenable number.

221112020101012 is a deficient number, since it is larger than the sum of its proper divisors (166186746200288).

221112020101012 is a wasteful number, since it uses less digits than its factorization.

221112020101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50390160650 (or 50390160648 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221112020101012 its reverse (210101020211122), we get a palindrome (431213040312134).

The spelling of 221112020101012 in words is "two hundred twenty-one trillion, one hundred twelve billion, twenty million, one hundred one thousand, twelve".