221201022022001 has 8 divisors (see below), whose sum is σ = 263792523156864. Its totient is φ = 181357359670080.

The previous prime is 221201022021907. The next prime is 221201022022021. The reversal of 221201022022001 is 100220220102122.

It is a happy number.

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 221201022022001 - 2³⁸ = 220926144115057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221201022022021) 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, 686959695560 + ... + 686959695881.

It is an arithmetic number, because the mean of its divisors is an integer number (32974065394608).

Almost surely, 2^{221201022022001} is an apocalyptic number.

It is an amenable number.

221201022022001 is a deficient number, since it is larger than the sum of its proper divisors (42591501134863).

221201022022001 is a wasteful number, since it uses less digits than its factorization.

221201022022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373919391471.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221201022022001 its reverse (100220220102122), we get a palindrome (321421242124123).

The spelling of 221201022022001 in words is "two hundred twenty-one trillion, two hundred one billion, twenty-two million, twenty-two thousand, one".