101222001221 has 8 divisors (see below), whose sum is σ = 110487013824. Its totient is φ = 91967490720.

The previous prime is 101222001211. The next prime is 101222001227. The reversal of 101222001221 is 122100222101.

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 101222001221 - 2¹⁴ = 101221984837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101222001196 and 101222001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222001227) 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 7 ways as a sum of consecutive naturals, for example, 2605361 + ... + 2643926.

It is an arithmetic number, because the mean of its divisors is an integer number (13810876728).

Almost surely, 2^101222001221 is an apocalyptic number.

101222001221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101222001221 is a deficient number, since it is larger than the sum of its proper divisors (9265012603).

101222001221 is a wasteful number, since it uses less digits than its factorization.

101222001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251051.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101222001221 its reverse (122100222101), we get a palindrome (223322223322).

The spelling of 101222001221 in words is "one hundred one billion, two hundred twenty-two million, one thousand, two hundred twenty-one".