210222212101 has 4 divisors (see below), whose sum is σ = 229333322304. Its totient is φ = 191111101900.

The previous prime is 210222212099. The next prime is 210222212159. The reversal of 210222212101 is 101212222012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210222212101 - 2¹ = 210222212099 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 (210222212191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9555555085 + ... + 9555555106.

It is an arithmetic number, because the mean of its divisors is an integer number (57333330576).

Almost surely, 2^210222212101 is an apocalyptic number.

It is an amenable number.

210222212101 is a deficient number, since it is larger than the sum of its proper divisors (19111110203).

210222212101 is a wasteful number, since it uses less digits than its factorization.

210222212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19111110202.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210222212101 its reverse (101212222012), we get a palindrome (311434434113).

The spelling of 210222212101 in words is "two hundred ten billion, two hundred twenty-two million, two hundred twelve thousand, one hundred one".