202112021212102 has 4 divisors (see below), whose sum is σ = 303168031818156. Its totient is φ = 101056010606050.

The previous prime is 202112021212099. The next prime is 202112021212163. The reversal of 202112021212102 is 201212120211202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 202112021212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50528005303024 + ... + 50528005303027.

It is an arithmetic number, because the mean of its divisors is an integer number (75792007954539).

Almost surely, 2^{202112021212102} is an apocalyptic number.

202112021212102 is a deficient number, since it is larger than the sum of its proper divisors (101056010606054).

202112021212102 is a wasteful number, since it uses less digits than its factorization.

202112021212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101056010606053.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202112021212102 its reverse (201212120211202), we get a palindrome (403324141423304).

The spelling of 202112021212102 in words is "two hundred two trillion, one hundred twelve billion, twenty-one million, two hundred twelve thousand, one hundred two".