221010011020201 has 8 divisors (see below), whose sum is σ = 241271202758600. Its totient is φ = 201214593804672.

The previous prime is 221010011020199. The next prime is 221010011020277. The reversal of 221010011020201 is 102020110010122.

221010011020201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 792721341801 + 220217289678400 = 890349^2 + 14839720^2 .

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 221010011020201 - 2¹ = 221010011020199 is a prime.

It is a super-2 number, since 2×221010011020201² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221010011026201) 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, 116443629726 + ... + 116443631623.

It is an arithmetic number, because the mean of its divisors is an integer number (30158900344825).

Almost surely, 2^{221010011020201} is an apocalyptic number.

It is an amenable number.

221010011020201 is a deficient number, since it is larger than the sum of its proper divisors (20261191738399).

221010011020201 is a wasteful number, since it uses less digits than its factorization.

221010011020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232887261435.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221010011020201 its reverse (102020110010122), we get a palindrome (323030121030323).

The spelling of 221010011020201 in words is "two hundred twenty-one trillion, ten billion, eleven million, twenty thousand, two hundred one".