121201113011 has 6 divisors (see below), whose sum is σ = 133221058236. Its totient is φ = 110182829900.

The previous prime is 121201112983. The next prime is 121201113017. The reversal of 121201113011 is 110311102121.

It is not a de Polignac number, because 121201113011 - 2⁶ = 121201112947 is a prime.

It is a super-2 number, since 2×121201113011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201113017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500830925 + ... + 500831166.

It is an arithmetic number, because the mean of its divisors is an integer number (22203509706).

Almost surely, 2^121201113011 is an apocalyptic number.

121201113011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121201113011 is a deficient number, since it is larger than the sum of its proper divisors (12019945225).

121201113011 is a wasteful number, since it uses less digits than its factorization.

121201113011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001662113 (or 1001662102 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 121201113011 its reverse (110311102121), we get a palindrome (231512215132).

The spelling of 121201113011 in words is "one hundred twenty-one billion, two hundred one million, one hundred thirteen thousand, eleven".