121232203101 has 6 divisors (see below), whose sum is σ = 175113182270. Its totient is φ = 80821468728.

The previous prime is 121232203093. The next prime is 121232203121. The reversal of 121232203101 is 101302232121.

121232203101 is a `hidden beast` number, since 12 + 123 + 220 + 310 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 83653992900 + 37578210201 = 289230^2 + 193851^2 .

It is not a de Polignac number, because 121232203101 - 2³ = 121232203093 is a prime.

It is a super-2 number, since 2×121232203101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121232203121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6735122386 + ... + 6735122403.

Almost surely, 2^121232203101 is an apocalyptic number.

It is an amenable number.

121232203101 is a deficient number, since it is larger than the sum of its proper divisors (53880979169).

121232203101 is a wasteful number, since it uses less digits than its factorization.

121232203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13470244795 (or 13470244792 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121232203101 its reverse (101302232121), we get a palindrome (222534435222).

The spelling of 121232203101 in words is "one hundred twenty-one billion, two hundred thirty-two million, two hundred three thousand, one hundred one".