111012201102122 has 4 divisors (see below), whose sum is σ = 166518301653186. Its totient is φ = 55506100551060.

The previous prime is 111012201102053. The next prime is 111012201102169. The reversal of 111012201102122 is 221201102210111.

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., 98075727215761 + 12936473886361 = 9903319^2 + 3596731^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111012201102122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27753050275529 + ... + 27753050275532.

Almost surely, 2^{111012201102122} is an apocalyptic number.

111012201102122 is a deficient number, since it is larger than the sum of its proper divisors (55506100551064).

111012201102122 is an equidigital number, since it uses as much as digits as its factorization.

111012201102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55506100551063.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111012201102122 its reverse (221201102210111), we get a palindrome (332213303312233).

The spelling of 111012201102122 in words is "one hundred eleven trillion, twelve billion, two hundred one million, one hundred two thousand, one hundred twenty-two".