111111010200121 has 8 divisors (see below), whose sum is σ = 112994415044640. Its totient is φ = 109227610935168.

The previous prime is 111111010200119. The next prime is 111111010200137. The reversal of 111111010200121 is 121002010111111.

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

It is a cyclic number.

It is not a de Polignac number, because 111111010200121 - 2¹ = 111111010200119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111111010270121) 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, 66736030 + ... + 68380696.

It is an arithmetic number, because the mean of its divisors is an integer number (14124301880580).

Almost surely, 2^{111111010200121} is an apocalyptic number.

It is an amenable number.

111111010200121 is a deficient number, since it is larger than the sum of its proper divisors (1883404844519).

111111010200121 is a wasteful number, since it uses less digits than its factorization.

111111010200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789783.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111111010200121 its reverse (121002010111111), we get a palindrome (232113020311232).

The spelling of 111111010200121 in words is "one hundred eleven trillion, one hundred eleven billion, ten million, two hundred thousand, one hundred twenty-one".