220121000222222 has 32 divisors (see below), whose sum is σ = 363390103332864. Its totient is φ = 99168326812800.

The previous prime is 220121000222197. The next prime is 220121000222231. The reversal of 220121000222222 is 222222000121022.

It is a junction number, because it is equal to n+sod(n) for n = 220121000222194 and 220121000222203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217136147 + ... + 218147537.

It is an arithmetic number, because the mean of its divisors is an integer number (11355940729152).

Almost surely, 2^{220121000222222} is an apocalyptic number.

220121000222222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220121000222222 is a deficient number, since it is larger than the sum of its proper divisors (143269103110642).

220121000222222 is a wasteful number, since it uses less digits than its factorization.

220121000222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099064.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 220121000222222 its reverse (222222000121022), we get a palindrome (442343000343244).

The spelling of 220121000222222 in words is "two hundred twenty trillion, one hundred twenty-one billion, two hundred twenty-two thousand, two hundred twenty-two".