220221121121110 has 16 divisors (see below), whose sum is σ = 396448303332816. Its totient is φ = 88077273934048.

The previous prime is 220221121121087. The next prime is 220221121121119. The reversal of 220221121121110 is 11121121122022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221121121119) 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, 1396731529 + ... + 1396889188.

It is an arithmetic number, because the mean of its divisors is an integer number (24778018958301).

Almost surely, 2^{220221121121110} is an apocalyptic number.

220221121121110 is a deficient number, since it is larger than the sum of its proper divisors (176227182211706).

220221121121110 is a wasteful number, since it uses less digits than its factorization.

220221121121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793628607.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220221121121110 its reverse (11121121122022), we get a palindrome (231342242243132).

The spelling of 220221121121110 in words is "two hundred twenty trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred ten".