102213130231221 has 8 divisors (see below), whose sum is σ = 137071943432160. Its totient is φ = 67748201925552.

The previous prime is 102213130231217. The next prime is 102213130231253. The reversal of 102213130231221 is 122132031312201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102213130231221 - 2² = 102213130231217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102213130231191 and 102213130231200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102213130231271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98471223211 + ... + 98471224248.

It is an arithmetic number, because the mean of its divisors is an integer number (17133992929020).

Almost surely, 2^{102213130231221} is an apocalyptic number.

It is an amenable number.

102213130231221 is a deficient number, since it is larger than the sum of its proper divisors (34858813200939).

102213130231221 is a wasteful number, since it uses less digits than its factorization.

102213130231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196942447635.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 102213130231221 its reverse (122132031312201), we get a palindrome (224345161543422).

The spelling of 102213130231221 in words is "one hundred two trillion, two hundred thirteen billion, one hundred thirty million, two hundred thirty-one thousand, two hundred twenty-one".