220121601171022 has 16 divisors (see below), whose sum is σ = 330750007809840. Its totient is φ = 109871635336128.

The previous prime is 220121601170959. The next prime is 220121601171061. The reversal of 220121601171022 is 220171106121022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2793178 + ... + 21167074.

It is an arithmetic number, because the mean of its divisors is an integer number (20671875488115).

Almost surely, 2^{220121601171022} is an apocalyptic number.

220121601171022 is a deficient number, since it is larger than the sum of its proper divisors (110628406638818).

220121601171022 is a wasteful number, since it uses less digits than its factorization.

220121601171022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18384195.

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 220121601171022 its reverse (220171106121022), we get a palindrome (440292707292044).

The spelling of 220121601171022 in words is "two hundred twenty trillion, one hundred twenty-one billion, six hundred one million, one hundred seventy-one thousand, twenty-two".