1001101202221 has 32 divisors (see below), whose sum is σ = 1171434839040. Its totient is φ = 848573915904.

The previous prime is 1001101202203. The next prime is 1001101202273. The reversal of 1001101202221 is 1222021011001.

It is a cyclic number.

It is not a de Polignac number, because 1001101202221 - 2¹¹ = 1001101200173 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 (1001101202291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 797566 + ... + 1624288.

It is an arithmetic number, because the mean of its divisors is an integer number (36607338720).

Almost surely, 2^{1001101202221} is an apocalyptic number.

It is an amenable number.

1001101202221 is a deficient number, since it is larger than the sum of its proper divisors (170333636819).

1001101202221 is a wasteful number, since it uses less digits than its factorization.

1001101202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826945.

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

Adding to 1001101202221 its reverse (1222021011001), we get a palindrome (2223122213222).

The spelling of 1001101202221 in words is "one trillion, one billion, one hundred one million, two hundred two thousand, two hundred twenty-one".