210120222220221 has 8 divisors (see below), whose sum is σ = 281582429778144. Its totient is φ = 139369081404560.

The previous prime is 210120222220219. The next prime is 210120222220373. The reversal of 210120222220221 is 122022222021012.

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 210120222220221 - 2¹ = 210120222220219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120222220421) 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, 177766684875 + ... + 177766686056.

It is an arithmetic number, because the mean of its divisors is an integer number (35197803722268).

Almost surely, 2^{210120222220221} is an apocalyptic number.

It is an amenable number.

210120222220221 is a deficient number, since it is larger than the sum of its proper divisors (71462207557923).

210120222220221 is a wasteful number, since it uses less digits than its factorization.

210120222220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355533371131.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 210120222220221 its reverse (122022222021012), we get a palindrome (332142444241233).

The spelling of 210120222220221 in words is "two hundred ten trillion, one hundred twenty billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-one".