121010320221 has 8 divisors (see below), whose sum is σ = 184396678464. Its totient is φ = 69148754400.

The previous prime is 121010320181. The next prime is 121010320241. The reversal of 121010320221 is 122023010121.

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

It is not a de Polignac number, because 121010320221 - 2¹⁴ = 121010303837 is a prime.

It is a super-2 number, since 2×121010320221² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121010320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010320241) 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, 2881198080 + ... + 2881198121.

It is an arithmetic number, because the mean of its divisors is an integer number (23049584808).

Almost surely, 2^121010320221 is an apocalyptic number.

It is an amenable number.

121010320221 is a deficient number, since it is larger than the sum of its proper divisors (63386358243).

121010320221 is an equidigital number, since it uses as much as digits as its factorization.

121010320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762396211.

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

Adding to 121010320221 its reverse (122023010121), we get a palindrome (243033330342).

The spelling of 121010320221 in words is "one hundred twenty-one billion, ten million, three hundred twenty thousand, two hundred twenty-one".