221011002021101 has 8 divisors (see below), whose sum is σ = 228145721309184. Its totient is φ = 213876615990960.

The previous prime is 221011002021049. The next prime is 221011002021133. The reversal of 221011002021101 is 101120200110122.

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 221011002021101 - 2¹⁴ = 221011002004717 is a prime.

It is a super-2 number, since 2×221011002021101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011002021151) 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, 81966365 + ... + 84619778.

It is an arithmetic number, because the mean of its divisors is an integer number (28518215163648).

Almost surely, 2^{221011002021101} is an apocalyptic number.

It is an amenable number.

221011002021101 is a deficient number, since it is larger than the sum of its proper divisors (7134719288083).

221011002021101 is a wasteful number, since it uses less digits than its factorization.

221011002021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166628971.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221011002021101 its reverse (101120200110122), we get a palindrome (322131202131223).

The spelling of 221011002021101 in words is "two hundred twenty-one trillion, eleven billion, two million, twenty-one thousand, one hundred one".