22102210020220 has 192 divisors, whose sum is σ = 51675931915776. Its totient is φ = 7873674117120.

The previous prime is 22102210020199. The next prime is 22102210020259. The reversal of 22102210020220 is 2202001220122.

It is a junction number, because it is equal to n+sod(n) for n = 22102210020194 and 22102210020203.

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 in 63 ways as a sum of consecutive naturals, for example, 1994238799 + ... + 1994249881.

It is an arithmetic number, because the mean of its divisors is an integer number (269145478728).

Almost surely, 2^{22102210020220} is an apocalyptic number.

22102210020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22102210020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25837965957888).

22102210020220 is an abundant number, since it is smaller than the sum of its proper divisors (29573721895556).

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

22102210020220 is a wasteful number, since it uses less digits than its factorization.

22102210020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12140 (or 12138 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22102210020220 its reverse (2202001220122), we get a palindrome (24304211240342).

The spelling of 22102210020220 in words is "twenty-two trillion, one hundred two billion, two hundred ten million, twenty thousand, two hundred twenty".