2102221220210 has 16 divisors (see below), whose sum is σ = 3784667913792. Its totient is φ = 840739662000.

The previous prime is 2102221220159. The next prime is 2102221220213. The reversal of 2102221220210 is 120221222012.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2102221220213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18543926 + ... + 18656945.

It is an arithmetic number, because the mean of its divisors is an integer number (236541744612).

Almost surely, 2^{2102221220210} is an apocalyptic number.

2102221220210 is a deficient number, since it is larger than the sum of its proper divisors (1682446693582).

2102221220210 is a wasteful number, since it uses less digits than its factorization.

2102221220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37206529.

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

Adding to 2102221220210 its reverse (120221222012), we get a palindrome (2222442442222).

The spelling of 2102221220210 in words is "two trillion, one hundred two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred ten".