2221111021210 has 32 divisors (see below), whose sum is σ = 4006292866560. Its totient is φ = 886602833088.

The previous prime is 2221111021187. The next prime is 2221111021219. The reversal of 2221111021210 is 121201111222.

It is not an unprimeable number, because it can be changed into a prime (2221111021219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13617399 + ... + 13779541.

It is an arithmetic number, because the mean of its divisors is an integer number (125196652080).

Almost surely, 2^{2221111021210} is an apocalyptic number.

2221111021210 is a deficient number, since it is larger than the sum of its proper divisors (1785181845350).

2221111021210 is a wasteful number, since it uses less digits than its factorization.

2221111021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164982.

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

Adding to 2221111021210 its reverse (121201111222), we get a palindrome (2342312132432).

The spelling of 2221111021210 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, twenty-one thousand, two hundred ten".