2221110121210 has 64 divisors (see below), whose sum is σ = 4225515310080. Its totient is φ = 838883485440.

The previous prime is 2221110121193. The next prime is 2221110121247. The reversal of 2221110121210 is 121210111222.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115787820 + ... + 115807000.

It is an arithmetic number, because the mean of its divisors is an integer number (66023676720).

Almost surely, 2^{2221110121210} is an apocalyptic number.

2221110121210 is a deficient number, since it is larger than the sum of its proper divisors (2004405188870).

2221110121210 is a wasteful number, since it uses less digits than its factorization.

2221110121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25663.

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

Adding to 2221110121210 its reverse (121210111222), we get a palindrome (2342320232432).

The spelling of 2221110121210 in words is "two trillion, two hundred twenty-one billion, one hundred ten million, one hundred twenty-one thousand, two hundred ten".