120202210122221 has 8 divisors (see below), whose sum is σ = 121438521278520. Its totient is φ = 118971857092608.

The previous prime is 120202210122191. The next prime is 120202210122227. The reversal of 120202210122221 is 122221012202021.

It can be written as a sum of positive squares in 4 ways, for example, as 26474369355625 + 93727840766596 = 5145325^2 + 9681314^2 .

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 120202210122221 - 2¹⁰ = 120202210121197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120202210122193 and 120202210122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202210122227) 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, 1489491116 + ... + 1489571813.

It is an arithmetic number, because the mean of its divisors is an integer number (15179815159815).

Almost surely, 2^{120202210122221} is an apocalyptic number.

It is an amenable number.

120202210122221 is a deficient number, since it is larger than the sum of its proper divisors (1236311156299).

120202210122221 is a wasteful number, since it uses less digits than its factorization.

120202210122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979063343.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 120202210122221 its reverse (122221012202021), we get a palindrome (242423222324242).

The spelling of 120202210122221 in words is "one hundred twenty trillion, two hundred two billion, two hundred ten million, one hundred twenty-two thousand, two hundred twenty-one".