221211022010101 has 8 divisors (see below), whose sum is σ = 222037851667680. Its totient is φ = 220384225566768.

The previous prime is 221211022010087. The next prime is 221211022010113. The reversal of 221211022010101 is 101010220112122.

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 221211022010101 - 2⁷ = 221211022009973 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 (221211022610101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5081830 + ... + 21639016.

It is an arithmetic number, because the mean of its divisors is an integer number (27754731458460).

Almost surely, 2^{221211022010101} is an apocalyptic number.

It is an amenable number.

221211022010101 is a deficient number, since it is larger than the sum of its proper divisors (826829657579).

221211022010101 is a wasteful number, since it uses less digits than its factorization.

221211022010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16607123.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221211022010101 its reverse (101010220112122), we get a palindrome (322221242122223).

The spelling of 221211022010101 in words is "two hundred twenty-one trillion, two hundred eleven billion, twenty-two million, ten thousand, one hundred one".