101221022201 has 4 divisors (see below), whose sum is σ = 109007254692. Its totient is φ = 93434789712.

The previous prime is 101221022191. The next prime is 101221022263. The reversal of 101221022201 is 102220122101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33959118400 + 67261903801 = 184280^2 + 259349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101221022201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221021201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3893116226 + ... + 3893116251.

It is an arithmetic number, because the mean of its divisors is an integer number (27251813673).

Almost surely, 2^101221022201 is an apocalyptic number.

It is an amenable number.

101221022201 is a deficient number, since it is larger than the sum of its proper divisors (7786232491).

101221022201 is an equidigital number, since it uses as much as digits as its factorization.

101221022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786232490.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101221022201 its reverse (102220122101), we get a palindrome (203441144302).

The spelling of 101221022201 in words is "one hundred one billion, two hundred twenty-one million, twenty-two thousand, two hundred one".