2100101211 has 48 divisors (see below), whose sum is σ = 3312036000.
Its totient is φ = 1274628096.
The previous prime is 2100101191. The next prime is 2100101243. The reversal of 2100101211 is 1121010012.
Adding to 2100101211 its reverse (1121010012), we get a palindrome (3221111223).
It is a happy number.
It is not a de Polignac number, because 2100101211 - 29 = 2100100699 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 2100101193 and 2100101202.
It is not an unprimeable number, because it can be changed into a prime (2100101251) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3120171 + ... + 3120843.
It is an arithmetic number, because the mean of its divisors is an integer number (69000750).
Almost surely, 22100101211 is an apocalyptic number.
2100101211 is a deficient number, since it is larger than the sum of its proper divisors (1211934789).
2100101211 is a wasteful number, since it uses less digits than its factorization.
2100101211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1020 (or 1017 counting only the distinct ones).
The product of its (nonzero) digits is 4, while the sum is 9.
The square root of 2100101211 is about 45826.8612387975.
The cubic root of 2100101211 is about 1280.5997374662.
The spelling of 2100101211 in words is "two billion, one hundred million, one hundred one thousand, two hundred eleven".