102001211 has 16 divisors (see below), whose sum is σ = 112284480. Its totient is φ = 92085120.

The previous prime is 102001201. The next prime is 102001217. The reversal of 102001211 is 112100201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102001211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102001217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232130 + ... + 232568.

It is an arithmetic number, because the mean of its divisors is an integer number (7017780).

Almost surely, 2^102001211 is an apocalyptic number.

102001211 is a deficient number, since it is larger than the sum of its proper divisors (10283269).

102001211 is a wasteful number, since it uses less digits than its factorization.

102001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

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

The square root of 102001211 is about 10099.5648916179. The cubic root of 102001211 is about 467.2347219099.

Adding to 102001211 its reverse (112100201), we get a palindrome (214101412).

It can be divided in two parts, 10200 and 1211, that added together give a palindrome (11411).

The spelling of 102001211 in words is "one hundred two million, one thousand, two hundred eleven".