102120212213 has 4 divisors (see below), whose sum is σ = 103111670688. Its totient is φ = 101128753740.

The previous prime is 102120212197. The next prime is 102120212237. The reversal of 102120212213 is 312212021201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102120212213 - 2⁴ = 102120212197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102120212191 and 102120212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120212263) 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 3 ways as a sum of consecutive naturals, for example, 495729083 + ... + 495729288.

It is an arithmetic number, because the mean of its divisors is an integer number (25777917672).

Almost surely, 2^102120212213 is an apocalyptic number.

It is an amenable number.

102120212213 is a deficient number, since it is larger than the sum of its proper divisors (991458475).

102120212213 is an equidigital number, since it uses as much as digits as its factorization.

102120212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991458474.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102120212213 its reverse (312212021201), we get a palindrome (414332233414).

The spelling of 102120212213 in words is "one hundred two billion, one hundred twenty million, two hundred twelve thousand, two hundred thirteen".