121010302221 has 8 divisors (see below), whose sum is σ = 161443865184. Its totient is φ = 80625137040.

The previous prime is 121010302181. The next prime is 121010302243. The reversal of 121010302221 is 122203010121.

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

It is not a de Polignac number, because 121010302221 - 2⁶ = 121010302157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121010302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010302321) 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, 12093610 + ... + 12103611.

It is an arithmetic number, because the mean of its divisors is an integer number (20180483148).

Almost surely, 2^121010302221 is an apocalyptic number.

It is an amenable number.

121010302221 is a deficient number, since it is larger than the sum of its proper divisors (40433562963).

121010302221 is a wasteful number, since it uses less digits than its factorization.

121010302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24198891.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121010302221 its reverse (122203010121), we get a palindrome (243213312342).

The spelling of 121010302221 in words is "one hundred twenty-one billion, ten million, three hundred two thousand, two hundred twenty-one".