202112210102 has 16 divisors (see below), whose sum is σ = 331562156112. Its totient is φ = 91637773920.

The previous prime is 202112210087. The next prime is 202112210107. The reversal of 202112210102 is 201012211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112210107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11561693 + ... + 11579160.

It is an arithmetic number, because the mean of its divisors is an integer number (20722634757).

Almost surely, 2^202112210102 is an apocalyptic number.

202112210102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202112210102 is a deficient number, since it is larger than the sum of its proper divisors (129449946010).

202112210102 is a wasteful number, since it uses less digits than its factorization.

202112210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23141263.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202112210102 its reverse (201012211202), we get a palindrome (403124421304).

It can be divided in two parts, 202112 and 210102, that added together give a palindrome (412214).

The spelling of 202112210102 in words is "two hundred two billion, one hundred twelve million, two hundred ten thousand, one hundred two".