120020112210221 has 2 divisors, whose sum is σ = 120020112210222. Its totient is φ = 120020112210220.

The previous prime is 120020112210209. The next prime is 120020112210281. The reversal of 120020112210221 is 122012211020021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118387761016996 + 1632351193225 = 10880614^2 + 1277635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120020112210221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120020112210221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120020112210281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010056105110 + 60010056105111.

It is an arithmetic number, because the mean of its divisors is an integer number (60010056105111).

Almost surely, 2^{120020112210221} is an apocalyptic number.

It is an amenable number.

120020112210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020112210221 is an equidigital number, since it uses as much as digits as its factorization.

120020112210221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120020112210221 its reverse (122012211020021), we get a palindrome (242032323230242).

The spelling of 120020112210221 in words is "one hundred twenty trillion, twenty billion, one hundred twelve million, two hundred ten thousand, two hundred twenty-one".