111212200102202 has 4 divisors (see below), whose sum is σ = 166818300153306. Its totient is φ = 55606100051100.

The previous prime is 111212200102193. The next prime is 111212200102247. The reversal of 111212200102202 is 202201002212111.

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

It can be written as a sum of positive squares in only one way, i.e., 93603090167161 + 17609109935041 = 9674869^2 + 4196321^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803050025549 + ... + 27803050025552.

Almost surely, 2^{111212200102202} is an apocalyptic number.

111212200102202 is a deficient number, since it is larger than the sum of its proper divisors (55606100051104).

111212200102202 is an equidigital number, since it uses as much as digits as its factorization.

111212200102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55606100051103.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111212200102202 its reverse (202201002212111), we get a palindrome (313413202314313).

The spelling of 111212200102202 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred million, one hundred two thousand, two hundred two".