221010100210001 has 8 divisors (see below), whose sum is σ = 221126186393760. Its totient is φ = 220894035338592.

The previous prime is 221010100209937. The next prime is 221010100210103. The reversal of 221010100210001 is 100012001010122.

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 221010100210001 - 2⁶ = 221010100209937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221010100212001) 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, 15438701 + ... + 26083973.

It is an arithmetic number, because the mean of its divisors is an integer number (27640773299220).

Almost surely, 2^{221010100210001} is an apocalyptic number.

It is an amenable number.

221010100210001 is a deficient number, since it is larger than the sum of its proper divisors (116086183759).

221010100210001 is a wasteful number, since it uses less digits than its factorization.

221010100210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10656175.

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

Adding to 221010100210001 its reverse (100012001010122), we get a palindrome (321022101220123).

The spelling of 221010100210001 in words is "two hundred twenty-one trillion, ten billion, one hundred million, two hundred ten thousand, one".