120000121020221 has 8 divisors (see below), whose sum is σ = 130563176876664. Its totient is φ = 109627390494720.

The previous prime is 120000121020193. The next prime is 120000121020223. The reversal of 120000121020221 is 122020121000021.

It can be written as a sum of positive squares in 4 ways, for example, as 4861963260196 + 115138157760025 = 2204986^2 + 10730245^2 .

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 120000121020221 - 2¹⁴ = 120000121003837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120000121020196 and 120000121020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000121020223) 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, 47581331420 + ... + 47581333941.

It is an arithmetic number, because the mean of its divisors is an integer number (16320397109583).

Almost surely, 2^{120000121020221} is an apocalyptic number.

It is an amenable number.

120000121020221 is a deficient number, since it is larger than the sum of its proper divisors (10563055856443).

120000121020221 is an equidigital number, since it uses as much as digits as its factorization.

120000121020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95162665471.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120000121020221 its reverse (122020121000021), we get a palindrome (242020242020242).

The spelling of 120000121020221 in words is "one hundred twenty trillion, one hundred twenty-one million, twenty thousand, two hundred twenty-one".