121536332211 has 16 divisors (see below), whose sum is σ = 193250317824. Its totient is φ = 66429796224.

The previous prime is 121536332173. The next prime is 121536332279. The reversal of 121536332211 is 112233635121.

It is not a de Polignac number, because 121536332211 - 2¹¹ = 121536330163 is a prime.

It is a super-2 number, since 2×121536332211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121536337211) 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, 125813526 + ... + 125814491.

It is an arithmetic number, because the mean of its divisors is an integer number (12078144864).

Almost surely, 2^121536332211 is an apocalyptic number.

121536332211 is a deficient number, since it is larger than the sum of its proper divisors (71713985613).

121536332211 is a wasteful number, since it uses less digits than its factorization.

121536332211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251628050.

The product of its digits is 6480, while the sum is 30.

Adding to 121536332211 its reverse (112233635121), we get a palindrome (233769967332).

The spelling of 121536332211 in words is "one hundred twenty-one billion, five hundred thirty-six million, three hundred thirty-two thousand, two hundred eleven".