211102001 has 8 divisors (see below), whose sum is σ = 230613600. Its totient is φ = 191643840.

The previous prime is 211101997. The next prime is 211102009. The reversal of 211102001 is 100201112.

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 211102001 - 2² = 211101997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211102001.

It is not an unprimeable number, because it can be changed into a prime (211102009) 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, 4856 + ... + 21113.

It is an arithmetic number, because the mean of its divisors is an integer number (28826700).

Almost surely, 2^211102001 is an apocalyptic number.

It is an amenable number.

211102001 is a deficient number, since it is larger than the sum of its proper divisors (19511599).

211102001 is a wasteful number, since it uses less digits than its factorization.

211102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26719.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 211102001 is about 14529.3496413294. The cubic root of 211102001 is about 595.4300974266.

Adding to 211102001 its reverse (100201112), we get a palindrome (311303113).

The spelling of 211102001 in words is "two hundred eleven million, one hundred two thousand, one".