22022121020 has 48 divisors (see below), whose sum is σ = 47513954208. Its totient is φ = 8567596800.

The previous prime is 22022120999. The next prime is 22022121071. The reversal of 22022121020 is 2012122022.

It is a junction number, because it is equal to n+sod(n) for n = 22022120986 and 22022121004.

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 15 ways as a sum of consecutive naturals, for example, 3491870 + ... + 3498170.

It is an arithmetic number, because the mean of its divisors is an integer number (989874046).

Almost surely, 2^22022121020 is an apocalyptic number.

22022121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022121020 is an abundant number, since it is smaller than the sum of its proper divisors (25491833188).

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

22022121020 is a wasteful number, since it uses less digits than its factorization.

22022121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070 (or 11068 counting only the distinct ones).

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

Adding to 22022121020 its reverse (2012122022), we get a palindrome (24034243042).

The spelling of 22022121020 in words is "twenty-two billion, twenty-two million, one hundred twenty-one thousand, twenty".