2221212211210 has 32 divisors (see below), whose sum is σ = 4010671158912. Its totient is φ = 885710063040.

The previous prime is 2221212211199. The next prime is 2221212211213. The reversal of 2221212211210 is 121122121222.

It is not an unprimeable number, because it can be changed into a prime (2221212211213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39072627 + ... + 39129433.

It is an arithmetic number, because the mean of its divisors is an integer number (125333473716).

Almost surely, 2^{2221212211210} is an apocalyptic number.

2221212211210 is a deficient number, since it is larger than the sum of its proper divisors (1789458947702).

2221212211210 is a wasteful number, since it uses less digits than its factorization.

2221212211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68958.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221212211210 its reverse (121122121222), we get a palindrome (2342334332432).

The spelling of 2221212211210 in words is "two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred eleven thousand, two hundred ten".