102213023221 has 4 divisors (see below), whose sum is σ = 102697445344. Its totient is φ = 101728601100.

The previous prime is 102213023197. The next prime is 102213023239. The reversal of 102213023221 is 122320312201.

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: 122320312201 = 331 ⋅369547771.

It is a cyclic number.

It is not a de Polignac number, because 102213023221 - 2¹³ = 102213015029 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 (102213023281) 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, 242210745 + ... + 242211166.

It is an arithmetic number, because the mean of its divisors is an integer number (25674361336).

Almost surely, 2^102213023221 is an apocalyptic number.

It is an amenable number.

102213023221 is a deficient number, since it is larger than the sum of its proper divisors (484422123).

102213023221 is an equidigital number, since it uses as much as digits as its factorization.

102213023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484422122.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102213023221 its reverse (122320312201), we get a palindrome (224533335422).

The spelling of 102213023221 in words is "one hundred two billion, two hundred thirteen million, twenty-three thousand, two hundred twenty-one".