101221201133 has 16 divisors (see below), whose sum is σ = 112196985600. Its totient is φ = 90739846080.

The previous prime is 101221201129. The next prime is 101221201153. The reversal of 101221201133 is 331102122101.

It is not a de Polignac number, because 101221201133 - 2² = 101221201129 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 (101221201153) 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, 745223 + ... + 870516.

It is an arithmetic number, because the mean of its divisors is an integer number (7012311600).

Almost surely, 2^101221201133 is an apocalyptic number.

101221201133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

101221201133 is a deficient number, since it is larger than the sum of its proper divisors (10975784467).

101221201133 is a wasteful number, since it uses less digits than its factorization.

101221201133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615892.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101221201133 its reverse (331102122101), we get a palindrome (432323323234).

The spelling of 101221201133 in words is "one hundred one billion, two hundred twenty-one million, two hundred one thousand, one hundred thirty-three".