210022211201221 has 8 divisors (see below), whose sum is σ = 210068076485880. Its totient is φ = 209976350071488.

The previous prime is 210022211201191. The next prime is 210022211201227. The reversal of 210022211201221 is 122102112220012.

210022211201221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2470963924900 + 207551247276321 = 1571930^2 + 14406639^2 .

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 210022211201221 - 2²³ = 210022202812613 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 (210022211201227) 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, 101163195 + ... + 103218391.

It is an arithmetic number, because the mean of its divisors is an integer number (26258509560735).

Almost surely, 2^{210022211201221} is an apocalyptic number.

It is an amenable number.

210022211201221 is a deficient number, since it is larger than the sum of its proper divisors (45865284659).

210022211201221 is a wasteful number, since it uses less digits than its factorization.

210022211201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077463.

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

Adding to 210022211201221 its reverse (122102112220012), we get a palindrome (332124323421233).

The spelling of 210022211201221 in words is "two hundred ten trillion, twenty-two billion, two hundred eleven million, two hundred one thousand, two hundred twenty-one".