202111112012122 has 8 divisors (see below), whose sum is σ = 304705585115316. Its totient is φ = 100542583640352.

The previous prime is 202111112012119. The next prime is 202111112012143. The reversal of 202111112012122 is 221210211111202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 128882684727801 + 73228427284321 = 11352651^2 + 8557361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 202111112012122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256486182363 + ... + 256486183150.

Almost surely, 2^{202111112012122} is an apocalyptic number.

202111112012122 is a deficient number, since it is larger than the sum of its proper divisors (102594473103194).

202111112012122 is a wasteful number, since it uses less digits than its factorization.

202111112012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512972365712.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 202111112012122 its reverse (221210211111202), we get a palindrome (423321323123324).

The spelling of 202111112012122 in words is "two hundred two trillion, one hundred eleven billion, one hundred twelve million, twelve thousand, one hundred twenty-two".