120221002202221 has 4 divisors (see below), whose sum is σ = 120221876058012. Its totient is φ = 120220128346432.

The previous prime is 120221002202207. The next prime is 120221002202251. The reversal of 120221002202221 is 122202200122021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64610424639721 + 55610577562500 = 8038061^2 + 7457250^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221002202221 - 2³⁹ = 119671246388333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221002202251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436721500 + ... + 436996693.

It is an arithmetic number, because the mean of its divisors is an integer number (30055469014503).

Almost surely, 2^{120221002202221} is an apocalyptic number.

It is an amenable number.

120221002202221 is a deficient number, since it is larger than the sum of its proper divisors (873855791).

120221002202221 is an equidigital number, since it uses as much as digits as its factorization.

120221002202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873855790.

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

Adding to 120221002202221 its reverse (122202200122021), we get a palindrome (242423202324242).

The spelling of 120221002202221 in words is "one hundred twenty trillion, two hundred twenty-one billion, two million, two hundred two thousand, two hundred twenty-one".