1001200010022 has 12 divisors (see below), whose sum is σ = 2169266688420. Its totient is φ = 333733336668.

The previous prime is 1001200009969. The next prime is 1001200010077. The reversal of 1001200010022 is 2200100021001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1001200009986 and 1001200010013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27811111372 + ... + 27811111407.

It is an arithmetic number, because the mean of its divisors is an integer number (180772224035).

Almost surely, 2^{1001200010022} is an apocalyptic number.

1001200010022 is an abundant number, since it is smaller than the sum of its proper divisors (1168066678398).

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

1001200010022 is a wasteful number, since it uses less digits than its factorization.

1001200010022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55622222787 (or 55622222784 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1001200010022 its reverse (2200100021001), we get a palindrome (3201300031023).

The spelling of 1001200010022 in words is "one trillion, one billion, two hundred million, ten thousand, twenty-two".