102212110021201 has 4 divisors (see below), whose sum is σ = 102212330515812. Its totient is φ = 102211889526592.

The previous prime is 102212110021111. The next prime is 102212110021267. The reversal of 102212110021201 is 102120011212201.

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 7301668665600 + 94910441355601 = 2702160^2 + 9742199^2 .

It is a cyclic number.

It is not a de Polignac number, because 102212110021201 - 2²¹ = 102212107924049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102212110001201) 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, 109550500 + ... + 110479573.

It is an arithmetic number, because the mean of its divisors is an integer number (25553082628953).

Almost surely, 2^{102212110021201} is an apocalyptic number.

It is an amenable number.

102212110021201 is a deficient number, since it is larger than the sum of its proper divisors (220494611).

102212110021201 is an equidigital number, since it uses as much as digits as its factorization.

102212110021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220494610.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102212110021201 its reverse (102120011212201), we get a palindrome (204332121233402).

The spelling of 102212110021201 in words is "one hundred two trillion, two hundred twelve billion, one hundred ten million, twenty-one thousand, two hundred one".