121112202011011 has 16 divisors (see below), whose sum is σ = 122327600532480. Its totient is φ = 119902762321920.

The previous prime is 121112202010967. The next prime is 121112202011033. The reversal of 121112202011011 is 110110202211121.

It is a cyclic number.

It is not a de Polignac number, because 121112202011011 - 2⁷ = 121112202010883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121112202011041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332826676 + ... + 333190366.

It is an arithmetic number, because the mean of its divisors is an integer number (7645475033280).

Almost surely, 2^{121112202011011} is an apocalyptic number.

121112202011011 is a deficient number, since it is larger than the sum of its proper divisors (1215398521469).

121112202011011 is a wasteful number, since it uses less digits than its factorization.

121112202011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371874.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121112202011011 its reverse (110110202211121), we get a palindrome (231222404222132).

The spelling of 121112202011011 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred two million, eleven thousand, eleven".