1001102201221 has 16 divisors (see below), whose sum is σ = 1022582073600. Its totient is φ = 979774790400.

The previous prime is 1001102201189. The next prime is 1001102201237. The reversal of 1001102201221 is 1221022011001.

It is a cyclic number.

It is not a de Polignac number, because 1001102201221 - 2⁵ = 1001102201189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001102201261) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 89690881 + ... + 89702041.

It is an arithmetic number, because the mean of its divisors is an integer number (63911379600).

Almost surely, 2^{1001102201221} is an apocalyptic number.

It is an amenable number.

1001102201221 is a deficient number, since it is larger than the sum of its proper divisors (21479872379).

1001102201221 is a wasteful number, since it uses less digits than its factorization.

1001102201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17820.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001102201221 its reverse (1221022011001), we get a palindrome (2222124212222).

The spelling of 1001102201221 in words is "one trillion, one billion, one hundred two million, two hundred one thousand, two hundred twenty-one".