202112215247 has 4 divisors (see below), whose sum is σ = 212749700280. Its totient is φ = 191474730216.

The previous prime is 202112215243. The next prime is 202112215267. The reversal of 202112215247 is 742512211202.

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

It is a cyclic number.

It is not a de Polignac number, because 202112215247 - 2² = 202112215243 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 (202112215241) 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, 5318742488 + ... + 5318742525.

It is an arithmetic number, because the mean of its divisors is an integer number (53187425070).

Almost surely, 2^202112215247 is an apocalyptic number.

202112215247 is a deficient number, since it is larger than the sum of its proper divisors (10637485033).

202112215247 is a wasteful number, since it uses less digits than its factorization.

202112215247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637485032.

The product of its (nonzero) digits is 4480, while the sum is 29.

Adding to 202112215247 its reverse (742512211202), we get a palindrome (944624426449).

The spelling of 202112215247 in words is "two hundred two billion, one hundred twelve million, two hundred fifteen thousand, two hundred forty-seven".