210222100001 has 4 divisors (see below), whose sum is σ = 214188554772. Its totient is φ = 206255645232.

The previous prime is 210222099917. The next prime is 210222100003. The reversal of 210222100001 is 100001222012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134073145600 + 76148954401 = 366160^2 + 275951^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222100001 - 2²² = 210217905697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210222100003) 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, 1983227306 + ... + 1983227411.

It is an arithmetic number, because the mean of its divisors is an integer number (53547138693).

Almost surely, 2^210222100001 is an apocalyptic number.

It is an amenable number.

210222100001 is a deficient number, since it is larger than the sum of its proper divisors (3966454771).

210222100001 is an equidigital number, since it uses as much as digits as its factorization.

210222100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966454770.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210222100001 its reverse (100001222012), we get a palindrome (310223322013).

The spelling of 210222100001 in words is "two hundred ten billion, two hundred twenty-two million, one hundred thousand, one".