210210222002221 has 8 divisors (see below), whose sum is σ = 240240379241600. Its totient is φ = 180180096144048.

The previous prime is 210210222002201. The next prime is 210210222002267. The reversal of 210210222002221 is 122200222012012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210210222002221 - 2⁵ = 210210222002189 is a prime.

It is a super-2 number, since 2×210210222002221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210210222002201) 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, 8888320 + ... + 22347766.

It is an arithmetic number, because the mean of its divisors is an integer number (30030047405200).

Almost surely, 2^{210210222002221} is an apocalyptic number.

It is an amenable number.

210210222002221 is a deficient number, since it is larger than the sum of its proper divisors (30030157239379).

210210222002221 is a wasteful number, since it uses less digits than its factorization.

210210222002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15690603.

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

Adding to 210210222002221 its reverse (122200222012012), we get a palindrome (332410444014233).

The spelling of 210210222002221 in words is "two hundred ten trillion, two hundred ten billion, two hundred twenty-two million, two thousand, two hundred twenty-one".