102011013333221 has 4 divisors (see below), whose sum is σ = 102011140301100. Its totient is φ = 102010886365344.

The previous prime is 102011013333199. The next prime is 102011013333367. The reversal of 102011013333221 is 122333310110201.

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 82846221960100 + 19164791373121 = 9101990^2 + 4377761^2 .

It is a cyclic number.

It is not a de Polignac number, because 102011013333221 - 2⁶ = 102011013333157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011013333521) 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, 62271056 + ... + 63888233.

It is an arithmetic number, because the mean of its divisors is an integer number (25502785075275).

Almost surely, 2^{102011013333221} is an apocalyptic number.

It is an amenable number.

102011013333221 is a deficient number, since it is larger than the sum of its proper divisors (126967879).

102011013333221 is an equidigital number, since it uses as much as digits as its factorization.

102011013333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126967878.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 102011013333221 its reverse (122333310110201), we get a palindrome (224344323443422).

The spelling of 102011013333221 in words is "one hundred two trillion, eleven billion, thirteen million, three hundred thirty-three thousand, two hundred twenty-one".