20222101220 has 24 divisors (see below), whose sum is σ = 42681986424. Its totient is φ = 8047778816.

The previous prime is 20222101219. The next prime is 20222101241. The reversal of 20222101220 is 2210122202.

It can be written as a sum of positive squares in 4 ways, for example, as 12928599616 + 7293501604 = 113704^2 + 85402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20222101195 and 20222101204.

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 7 ways as a sum of consecutive naturals, for example, 2562317 + ... + 2570196.

It is an arithmetic number, because the mean of its divisors is an integer number (1778416101).

Almost surely, 2^20222101220 is an apocalyptic number.

20222101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222101220 is an abundant number, since it is smaller than the sum of its proper divisors (22459885204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20222101220 is a wasteful number, since it uses less digits than its factorization.

20222101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132719 (or 5132717 counting only the distinct ones).

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

Adding to 20222101220 its reverse (2210122202), we get a palindrome (22432223422).

The spelling of 20222101220 in words is "twenty billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty".