210010122221221 has 8 divisors (see below), whose sum is σ = 240628564575360. Its totient is φ = 179545928947728.

The previous prime is 210010122221213. The next prime is 210010122221353. The reversal of 210010122221221 is 122122221010012.

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

It is not a de Polignac number, because 210010122221221 - 2³ = 210010122221213 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 (210010122221201) 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, 38562267241 + ... + 38562272686.

It is an arithmetic number, because the mean of its divisors is an integer number (30078570571920).

Almost surely, 2^{210010122221221} is an apocalyptic number.

It is an amenable number.

210010122221221 is a deficient number, since it is larger than the sum of its proper divisors (30618442354139).

210010122221221 is an equidigital number, since it uses as much as digits as its factorization.

210010122221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77124540323.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210010122221221 its reverse (122122221010012), we get a palindrome (332132343231233).

The spelling of 210010122221221 in words is "two hundred ten trillion, ten billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".