102212101021213 has 4 divisors (see below), whose sum is σ = 102212133620220. Its totient is φ = 102212068422208.

The previous prime is 102212101021091. The next prime is 102212101021223. The reversal of 102212101021213 is 312120101212201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42292936903204 + 59919164118009 = 6503302^2 + 7740747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102212101021213 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 (102212101021223) 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, 11028070 + ... + 18056647.

It is an arithmetic number, because the mean of its divisors is an integer number (25553033405055).

Almost surely, 2^{102212101021213} is an apocalyptic number.

It is an amenable number.

102212101021213 is a deficient number, since it is larger than the sum of its proper divisors (32599007).

102212101021213 is an equidigital number, since it uses as much as digits as its factorization.

102212101021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32599006.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 102212101021213 its reverse (312120101212201), we get a palindrome (414332202233414).

The spelling of 102212101021213 in words is "one hundred two trillion, two hundred twelve billion, one hundred one million, twenty-one thousand, two hundred thirteen".