2221220021210 has 32 divisors (see below), whose sum is σ = 4068927924480. Its totient is φ = 872842082112.

The previous prime is 2221220021203. The next prime is 2221220021261. The reversal of 2221220021210 is 121200221222.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 4270805 + ... + 4762584.

It is an arithmetic number, because the mean of its divisors is an integer number (127153997640).

Almost surely, 2^{2221220021210} is an apocalyptic number.

2221220021210 is a deficient number, since it is larger than the sum of its proper divisors (1847707903270).

2221220021210 is a wasteful number, since it uses less digits than its factorization.

2221220021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9033830.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2221220021210 its reverse (121200221222), we get a palindrome (2342420242432).

The spelling of 2221220021210 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, twenty-one thousand, two hundred ten".