102012213 has 4 divisors (see below), whose sum is σ = 136016288. Its totient is φ = 68008140.

The previous prime is 102012187. The next prime is 102012217. The reversal of 102012213 is 312210201.

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 not a de Polignac number, because 102012213 - 2⁵ = 102012181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012217) 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, 17002033 + ... + 17002038.

It is an arithmetic number, because the mean of its divisors is an integer number (34004072).

Almost surely, 2^102012213 is an apocalyptic number.

It is an amenable number.

102012213 is a deficient number, since it is larger than the sum of its proper divisors (34004075).

102012213 is an equidigital number, since it uses as much as digits as its factorization.

102012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34004074.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102012213 is about 10100.1095538613. The cubic root of 102012213 is about 467.2515201798.

Adding to 102012213 its reverse (312210201), we get a palindrome (414222414).

The spelling of 102012213 in words is "one hundred two million, twelve thousand, two hundred thirteen".