121200222111011 has 8 divisors (see below), whose sum is σ = 123880120349040. Its totient is φ = 118541179112608.

The previous prime is 121200222110951. The next prime is 121200222111103. The reversal of 121200222111011 is 110111222002121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121200222111011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121200224111011) 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, 5213798156 + ... + 5213821401.

It is an arithmetic number, because the mean of its divisors is an integer number (15485015043630).

Almost surely, 2^{121200222111011} is an apocalyptic number.

121200222111011 is a deficient number, since it is larger than the sum of its proper divisors (2679898238029).

121200222111011 is a wasteful number, since it uses less digits than its factorization.

121200222111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10427619813.

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

Adding to 121200222111011 its reverse (110111222002121), we get a palindrome (231311444113132).

The spelling of 121200222111011 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty-two million, one hundred eleven thousand, eleven".