220121022220210 has 16 divisors (see below), whose sum is σ = 401645481641496. Its totient is φ = 86842266300288.

The previous prime is 220121022220181. The next prime is 220121022220217. The reversal of 220121022220210 is 12022220121022.

220121022220210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 218791223477649 + 1329798742561 = 14791593^2 + 1153169^2 .

It is not an unprimeable number, because it can be changed into a prime (220121022220217) 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, 150767822709 + ... + 150767824168.

Almost surely, 2^{220121022220210} is an apocalyptic number.

220121022220210 is a deficient number, since it is larger than the sum of its proper divisors (181524459421286).

220121022220210 is a wasteful number, since it uses less digits than its factorization.

220121022220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301535646957.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220121022220210 its reverse (12022220121022), we get a palindrome (232143242341232).

The spelling of 220121022220210 in words is "two hundred twenty trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty thousand, two hundred ten".