220121002022 has 4 divisors (see below), whose sum is σ = 330181503036. Its totient is φ = 110060501010.

The previous prime is 220121002001. The next prime is 220121002039. The reversal of 220121002022 is 220200121022.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 220121001988 and 220121002006.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 55030250504 + ... + 55030250507.

It is an arithmetic number, because the mean of its divisors is an integer number (82545375759).

Almost surely, 2^220121002022 is an apocalyptic number.

220121002022 is a deficient number, since it is larger than the sum of its proper divisors (110060501014).

220121002022 is a wasteful number, since it uses less digits than its factorization.

220121002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110060501013.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220121002022 its reverse (220200121022), we get a palindrome (440321123044).

The spelling of 220121002022 in words is "two hundred twenty billion, one hundred twenty-one million, two thousand, twenty-two".