1002001221122 has 16 divisors (see below), whose sum is σ = 1639691161344. Its totient is φ = 455440434000.

The previous prime is 1002001221113. The next prime is 1002001221139. The reversal of 1002001221122 is 2211221002001.

It is a junction number, because it is equal to n+sod(n) for n = 1002001221097 and 1002001221106.

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 7 ways as a sum of consecutive naturals, for example, 19154 + ... + 1415757.

It is an arithmetic number, because the mean of its divisors is an integer number (102480697584).

Almost surely, 2^{1002001221122} is an apocalyptic number.

1002001221122 is a deficient number, since it is larger than the sum of its proper divisors (637689940222).

1002001221122 is a wasteful number, since it uses less digits than its factorization.

1002001221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466665.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1002001221122 its reverse (2211221002001), we get a palindrome (3213222223123).

It can be divided in two parts, 1002001 and 221122, that multiplied together give a palindrome (221564465122).

The spelling of 1002001221122 in words is "one trillion, two billion, one million, two hundred twenty-one thousand, one hundred twenty-two".