222022121000020 has 24 divisors (see below), whose sum is σ = 508632495382368. Its totient is φ = 80735316727200.

The previous prime is 222022120999907. The next prime is 222022121000021. The reversal of 222022121000020 is 20000121220222.

It is a junction number, because it is equal to n+sod(n) for n = 222022120999958 and 222022121000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222022121000021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504595729326 + ... + 504595729765.

It is an arithmetic number, because the mean of its divisors is an integer number (21193020640932).

Almost surely, 2^{222022121000020} is an apocalyptic number.

222022121000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222022121000020 is an abundant number, since it is smaller than the sum of its proper divisors (286610374382348).

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

222022121000020 is a wasteful number, since it uses less digits than its factorization.

222022121000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009191459111 (or 1009191459109 counting only the distinct ones).

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

Adding to 222022121000020 its reverse (20000121220222), we get a palindrome (242022242220242).

The spelling of 222022121000020 in words is "two hundred twenty-two trillion, twenty-two billion, one hundred twenty-one million, twenty", and thus it is an aban number.