102011303221 has 4 divisors (see below), whose sum is σ = 107380319200. Its totient is φ = 96642287244.

The previous prime is 102011303197. The next prime is 102011303243. The reversal of 102011303221 is 122303110201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122303110201 = 120779 ⋅1012619.

It is a cyclic number.

It is not a de Polignac number, because 102011303221 - 2⁵ = 102011303189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102011303195 and 102011303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011003221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2684507961 + ... + 2684507998.

It is an arithmetic number, because the mean of its divisors is an integer number (26845079800).

Almost surely, 2^102011303221 is an apocalyptic number.

It is an amenable number.

102011303221 is a deficient number, since it is larger than the sum of its proper divisors (5369015979).

102011303221 is an equidigital number, since it uses as much as digits as its factorization.

102011303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369015978.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102011303221 its reverse (122303110201), we get a palindrome (224314413422).

The spelling of 102011303221 in words is "one hundred two billion, eleven million, three hundred three thousand, two hundred twenty-one".