210202220221221 has 8 divisors (see below), whose sum is σ = 280698830068320. Its totient is φ = 139920211927472.

The previous prime is 210202220221219. The next prime is 210202220221337. The reversal of 210202220221221 is 122122022202012.

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 210202220221221 - 2¹ = 210202220221219 is a prime.

It is a super-3 number, since 3×210202220221221³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210202220221121) 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, 53650386051 + ... + 53650389968.

It is an arithmetic number, because the mean of its divisors is an integer number (35087353758540).

Almost surely, 2^{210202220221221} is an apocalyptic number.

It is an amenable number.

210202220221221 is a deficient number, since it is larger than the sum of its proper divisors (70496609847099).

210202220221221 is a wasteful number, since it uses less digits than its factorization.

210202220221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107300776675.

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

Adding to 210202220221221 its reverse (122122022202012), we get a palindrome (332324242423233).

The spelling of 210202220221221 in words is "two hundred ten trillion, two hundred two billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twenty-one".