22022112221020 has 24 divisors (see below), whose sum is σ = 47119009924224. Its totient is φ = 8642640267456.

The previous prime is 22022112221009. The next prime is 22022112221063. The reversal of 22022112221020 is 2012221122022.

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, 10387787724 + ... + 10387789843.

It is an arithmetic number, because the mean of its divisors is an integer number (1963292080176).

Almost surely, 2^{22022112221020} is an apocalyptic number.

22022112221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022112221020 is an abundant number, since it is smaller than the sum of its proper divisors (25096897703204).

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

22022112221020 is a wasteful number, since it uses less digits than its factorization.

22022112221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20775577629 (or 20775577627 counting only the distinct ones).

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

Adding to 22022112221020 its reverse (2012221122022), we get a palindrome (24034333343042).

The spelling of 22022112221020 in words is "twenty-two trillion, twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, twenty".