121012101121 has 8 divisors (see below), whose sum is σ = 122824241120. Its totient is φ = 119200137408.

The previous prime is 121012101083. The next prime is 121012101139. The reversal of 121012101121 is 121101210121.

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 121012101121 - 2²¹ = 121010003969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121012101191) 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, 2149510 + ... + 2205088.

It is an arithmetic number, because the mean of its divisors is an integer number (15353030140).

Almost surely, 2^121012101121 is an apocalyptic number.

It is an amenable number.

121012101121 is a deficient number, since it is larger than the sum of its proper divisors (1812139999).

121012101121 is an equidigital number, since it uses as much as digits as its factorization.

121012101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88143.

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

Adding to 121012101121 its reverse (121101210121), we get a palindrome (242113311242).

The spelling of 121012101121 in words is "one hundred twenty-one billion, twelve million, one hundred one thousand, one hundred twenty-one".