102030311213221 has 8 divisors (see below), whose sum is σ = 103335757371000. Its totient is φ = 100730654174400.

The previous prime is 102030311213119. The next prime is 102030311213261. The reversal of 102030311213221 is 122312113030201.

It can be written as a sum of positive squares in 4 ways, for example, as 29778696204196 + 72251615009025 = 5456986^2 + 8500095^2 .

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 102030311213221 - 2³³ = 102021721278629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102030311213192 and 102030311213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030311213261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447244266 + ... + 1447314763.

It is an arithmetic number, because the mean of its divisors is an integer number (12916969671375).

Almost surely, 2^{102030311213221} is an apocalyptic number.

It is an amenable number.

102030311213221 is a deficient number, since it is larger than the sum of its proper divisors (1305446157779).

102030311213221 is a wasteful number, since it uses less digits than its factorization.

102030311213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894559479.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 102030311213221 its reverse (122312113030201), we get a palindrome (224342424243422).

The spelling of 102030311213221 in words is "one hundred two trillion, thirty billion, three hundred eleven million, two hundred thirteen thousand, two hundred twenty-one".