121010321121 has 8 divisors (see below), whose sum is σ = 161865897024. Its totient is φ = 80414146320.

The previous prime is 121010321119. The next prime is 121010321129. The reversal of 121010321121 is 121123010121.

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

It is not a de Polignac number, because 121010321121 - 2¹ = 121010321119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121010321121.

It is not an unprimeable number, because it can be changed into a prime (121010321129) 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, 64849186 + ... + 64851051.

It is an arithmetic number, because the mean of its divisors is an integer number (20233237128).

Almost surely, 2^121010321121 is an apocalyptic number.

It is an amenable number.

121010321121 is a deficient number, since it is larger than the sum of its proper divisors (40855575903).

121010321121 is a wasteful number, since it uses less digits than its factorization.

121010321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129700551.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121010321121 its reverse (121123010121), we get a palindrome (242133331242).

The spelling of 121010321121 in words is "one hundred twenty-one billion, ten million, three hundred twenty-one thousand, one hundred twenty-one".