101121232121 has 8 divisors (see below), whose sum is σ = 124456901184. Its totient is φ = 80008007760.

The previous prime is 101121232111. The next prime is 101121232133. The reversal of 101121232121 is 121232121101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 101121232121 - 2¹⁰ = 101121231097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101121232121.

It is not an unprimeable number, because it can be changed into a prime (101121232111) 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, 555611075 + ... + 555611256.

It is an arithmetic number, because the mean of its divisors is an integer number (15557112648).

Almost surely, 2^101121232121 is an apocalyptic number.

It is an amenable number.

101121232121 is a deficient number, since it is larger than the sum of its proper divisors (23335669063).

101121232121 is a wasteful number, since it uses less digits than its factorization.

101121232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111222351.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 101121232121 its reverse (121232121101), we get a palindrome (222353353222).

It can be divided in two parts, 101 and 121232121, that multiplied together give a palindrome (12244444221).

The spelling of 101121232121 in words is "one hundred one billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred twenty-one".