220121011222 has 16 divisors (see below), whose sum is σ = 378563657472. Its totient is φ = 94034238120.

The previous prime is 220121011219. The next prime is 220121011241. The reversal of 220121011222 is 222110121022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220121011196 and 220121011205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25273668 + ... + 25282375.

It is an arithmetic number, because the mean of its divisors is an integer number (23660228592).

Almost surely, 2^220121011222 is an apocalyptic number.

220121011222 is a deficient number, since it is larger than the sum of its proper divisors (158442646250).

220121011222 is a wasteful number, since it uses less digits than its factorization.

220121011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50556363.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220121011222 its reverse (222110121022), we get a palindrome (442231132244).

The spelling of 220121011222 in words is "two hundred twenty billion, one hundred twenty-one million, eleven thousand, two hundred twenty-two".