103020201332221 has 4 divisors (see below), whose sum is σ = 103020504245244. Its totient is φ = 103019898419200.

The previous prime is 103020201332201. The next prime is 103020201332233. The reversal of 103020201332221 is 122233102020301.

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 40782081627225 + 62238119704996 = 6386085^2 + 7889114^2 .

It is a cyclic number.

It is not a de Polignac number, because 103020201332221 - 2²¹ = 103020199235069 is a prime.

It is a super-2 number, since 2×103020201332221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103020201332192 and 103020201332201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103020201332201) 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, 150945790 + ... + 151626751.

It is an arithmetic number, because the mean of its divisors is an integer number (25755126061311).

Almost surely, 2^{103020201332221} is an apocalyptic number.

It is an amenable number.

103020201332221 is a deficient number, since it is larger than the sum of its proper divisors (302913023).

103020201332221 is an equidigital number, since it uses as much as digits as its factorization.

103020201332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302913022.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 103020201332221 its reverse (122233102020301), we get a palindrome (225253303352522).

The spelling of 103020201332221 in words is "one hundred three trillion, twenty billion, two hundred one million, three hundred thirty-two thousand, two hundred twenty-one".