101210121121 has 8 divisors (see below), whose sum is σ = 104223494144. Its totient is φ = 98226732240.

The previous prime is 101210121119. The next prime is 101210121143. The reversal of 101210121121 is 121121012101.

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 101210121121 - 2¹ = 101210121119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101210121161) 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 7 ways as a sum of consecutive naturals, for example, 7489185 + ... + 7502686.

It is an arithmetic number, because the mean of its divisors is an integer number (13027936768).

Almost surely, 2^101210121121 is an apocalyptic number.

It is an amenable number.

101210121121 is a deficient number, since it is larger than the sum of its proper divisors (3013373023).

101210121121 is a wasteful number, since it uses less digits than its factorization.

101210121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14992071.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101210121121 its reverse (121121012101), we get a palindrome (222331133222).

The spelling of 101210121121 in words is "one hundred one billion, two hundred ten million, one hundred twenty-one thousand, one hundred twenty-one".