1001102120221 has 8 divisors (see below), whose sum is σ = 1211417691840. Its totient is φ = 807611794368.

The previous prime is 1001102120209. The next prime is 1001102120267. The reversal of 1001102120221 is 1220212011001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001102120221 - 2¹⁷ = 1001101989149 is a prime.

It is a super-2 number, since 2×1001102120221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001102120201) 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 7 ways as a sum of consecutive naturals, for example, 4206311311 + ... + 4206311548.

It is an arithmetic number, because the mean of its divisors is an integer number (151427211480).

Almost surely, 2^{1001102120221} is an apocalyptic number.

It is an amenable number.

1001102120221 is a deficient number, since it is larger than the sum of its proper divisors (210315571619).

1001102120221 is an equidigital number, since it uses as much as digits as its factorization.

1001102120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8412622883.

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

Adding to 1001102120221 its reverse (1220212011001), we get a palindrome (2221314131222).

The spelling of 1001102120221 in words is "one trillion, one billion, one hundred two million, one hundred twenty thousand, two hundred twenty-one".