1222001110020 has 48 divisors (see below), whose sum is σ = 3462827256000. Its totient is φ = 321940853376.

The previous prime is 1222001110007. The next prime is 1222001110049. The reversal of 1222001110020 is 200111002221.

It is a super-2 number, since 2×1222001110020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1222001109978 and 1222001110005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122685895 + ... + 122695854.

It is an arithmetic number, because the mean of its divisors is an integer number (72142234500).

Almost surely, 2^{1222001110020} is an apocalyptic number.

1222001110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222001110020 is an abundant number, since it is smaller than the sum of its proper divisors (2240826145980).

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

1222001110020 is a wasteful number, since it uses less digits than its factorization.

1222001110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245381844 (or 245381842 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1222001110020 its reverse (200111002221), we get a palindrome (1422112112241).

The spelling of 1222001110020 in words is "one trillion, two hundred twenty-two billion, one million, one hundred ten thousand, twenty".