220122212122 has 8 divisors (see below), whose sum is σ = 338236569972. Its totient is φ = 107376688800.

The previous prime is 220122212099. The next prime is 220122212131. The reversal of 220122212122 is 221212221022.

It can be written as a sum of positive squares in 2 ways, for example, as 150194227401 + 69927984721 = 387549^2 + 264439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 220122212122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342208529 + ... + 1342208692.

Almost surely, 2^220122212122 is an apocalyptic number.

220122212122 is a deficient number, since it is larger than the sum of its proper divisors (118114357850).

220122212122 is a wasteful number, since it uses less digits than its factorization.

220122212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684417264.

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

Adding to 220122212122 its reverse (221212221022), we get a palindrome (441334433144).

The spelling of 220122212122 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".