220221112001012 has 6 divisors (see below), whose sum is σ = 385386946001778. Its totient is φ = 110110556000504.

The previous prime is 220221112000979. The next prime is 220221112001027. The reversal of 220221112001012 is 210100211122022.

It can be written as a sum of positive squares in only one way, i.e., 194094661149796 + 26126450851216 = 13931786^2 + 5111404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527639000123 + ... + 27527639000130.

It is an arithmetic number, because the mean of its divisors is an integer number (64231157666963).

Almost surely, 2^{220221112001012} is an apocalyptic number.

It is an amenable number.

220221112001012 is a deficient number, since it is larger than the sum of its proper divisors (165165834000766).

220221112001012 is a wasteful number, since it uses less digits than its factorization.

220221112001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55055278000257 (or 55055278000255 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220221112001012 its reverse (210100211122022), we get a palindrome (430321323123034).

The spelling of 220221112001012 in words is "two hundred twenty trillion, two hundred twenty-one billion, one hundred twelve million, one thousand, twelve".