210211220111001 has 16 divisors (see below), whose sum is σ = 280775418115200. Its totient is φ = 139893960885120.

The previous prime is 210211220110883. The next prime is 210211220111003. The reversal of 210211220111001 is 100111022112012.

It is a happy number.

It is not a de Polignac number, because 210211220111001 - 2⁷ = 210211220110873 is a prime.

It is a super-2 number, since 2×210211220111001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210211220111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14131941 + ... + 24902493.

It is an arithmetic number, because the mean of its divisors is an integer number (17548463632200).

Almost surely, 2^{210211220111001} is an apocalyptic number.

It is an amenable number.

210211220111001 is a deficient number, since it is larger than the sum of its proper divisors (70564198004199).

210211220111001 is a wasteful number, since it uses less digits than its factorization.

210211220111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10782016.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210211220111001 its reverse (100111022112012), we get a palindrome (310322242223013).

The spelling of 210211220111001 in words is "two hundred ten trillion, two hundred eleven billion, two hundred twenty million, one hundred eleven thousand, one".