101221102001 has 8 divisors (see below), whose sum is σ = 101741762304. Its totient is φ = 100701038160.

The previous prime is 101221101997. The next prime is 101221102033. The reversal of 101221102001 is 100201122101.

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 101221102001 - 2² = 101221101997 is a prime.

It is a super-2 number, since 2×101221102001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221102061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193175 + ... + 489651.

It is an arithmetic number, because the mean of its divisors is an integer number (12717720288).

Almost surely, 2^101221102001 is an apocalyptic number.

It is an amenable number.

101221102001 is a deficient number, since it is larger than the sum of its proper divisors (520660303).

101221102001 is a wasteful number, since it uses less digits than its factorization.

101221102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298231.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101221102001 its reverse (100201122101), we get a palindrome (201422224102).

The spelling of 101221102001 in words is "one hundred one billion, two hundred twenty-one million, one hundred two thousand, one".