102220613 has 4 divisors (see below), whose sum is σ = 111513408. Its totient is φ = 92927820.

The previous prime is 102220607. The next prime is 102220619. The reversal of 102220613 is 316022201.

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: 316022201 = 11 ⋅28729291.

It is an interprime number because it is at equal distance from previous prime (102220607) and next prime (102220619).

It is a cyclic number.

It is not a de Polignac number, because 102220613 - 2¹⁴ = 102204229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102220591 and 102220600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4646381 + ... + 4646402.

It is an arithmetic number, because the mean of its divisors is an integer number (27878352).

Almost surely, 2^102220613 is an apocalyptic number.

It is an amenable number.

102220613 is a deficient number, since it is larger than the sum of its proper divisors (9292795).

102220613 is an equidigital number, since it uses as much as digits as its factorization.

102220613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292794.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 102220613 is about 10110.4210100272. The cubic root of 102220613 is about 467.5694853203.

Adding to 102220613 its reverse (316022201), we get a palindrome (418242814).

The spelling of 102220613 in words is "one hundred two million, two hundred twenty thousand, six hundred thirteen".