102212545241 has 4 divisors (see below), whose sum is σ = 102214943184. Its totient is φ = 102210147300.

The previous prime is 102212545231. The next prime is 102212545297. The reversal of 102212545241 is 142545212201.

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 a de Polignac number, because none of the positive numbers 2^k-102212545241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102212545231) 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, 1133855 + ... + 1220676.

It is an arithmetic number, because the mean of its divisors is an integer number (25553735796).

Almost surely, 2^102212545241 is an apocalyptic number.

It is an amenable number.

102212545241 is a deficient number, since it is larger than the sum of its proper divisors (2397943).

102212545241 is an equidigital number, since it uses as much as digits as its factorization.

102212545241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397942.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 102212545241 its reverse (142545212201), we get a palindrome (244757757442).

The spelling of 102212545241 in words is "one hundred two billion, two hundred twelve million, five hundred forty-five thousand, two hundred forty-one".