2221201111210 has 16 divisors (see below), whose sum is σ = 4037747764392. Its totient is φ = 879683608000.

The previous prime is 2221201111201. The next prime is 2221201111253. The reversal of 2221201111210 is 121111021222.

It can be written as a sum of positive squares in 4 ways, for example, as 2132040942801 + 89160168409 = 1460151^2 + 298597^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 1099603501 + ... + 1099605520.

Almost surely, 2^{2221201111210} is an apocalyptic number.

2221201111210 is a deficient number, since it is larger than the sum of its proper divisors (1816546653182).

2221201111210 is a wasteful number, since it uses less digits than its factorization.

2221201111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199209129.

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

Adding to 2221201111210 its reverse (121111021222), we get a palindrome (2342312132432).

The spelling of 2221201111210 in words is "two trillion, two hundred twenty-one billion, two hundred one million, one hundred eleven thousand, two hundred ten".