120202202120221 has 8 divisors (see below), whose sum is σ = 129457521914840. Its totient is φ = 110948167547712.

The previous prime is 120202202120179. The next prime is 120202202120257. The reversal of 120202202120221 is 122021202202021.

It can be written as a sum of positive squares in 4 ways, for example, as 511491014596 + 119690711105625 = 715186^2 + 10940325^2 .

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 120202202120221 - 2¹⁹ = 120202201595933 is a prime.

It is a super-3 number, since 3×120202202120221³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202202123221) 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, 321111270 + ... + 321485383.

It is an arithmetic number, because the mean of its divisors is an integer number (16182190239355).

Almost surely, 2^{120202202120221} is an apocalyptic number.

It is an amenable number.

120202202120221 is a deficient number, since it is larger than the sum of its proper divisors (9255319794619).

120202202120221 is a wasteful number, since it uses less digits than its factorization.

120202202120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642611055.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 120202202120221 its reverse (122021202202021), we get a palindrome (242223404322242).

The spelling of 120202202120221 in words is "one hundred twenty trillion, two hundred two billion, two hundred two million, one hundred twenty thousand, two hundred twenty-one".