102211001 has 4 divisors (see below), whose sum is σ = 103166352. Its totient is φ = 101255652.

The previous prime is 102210989. The next prime is 102211003. The reversal of 102211001 is 100112201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102211001 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 102211001.

It is not an unprimeable number, because it can be changed into a prime (102211003) 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, 477515 + ... + 477728.

It is an arithmetic number, because the mean of its divisors is an integer number (25791588).

Almost surely, 2^102211001 is an apocalyptic number.

It is an amenable number.

102211001 is a deficient number, since it is larger than the sum of its proper divisors (955351).

102211001 is an equidigital number, since it uses as much as digits as its factorization.

102211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955350.

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

The square root of 102211001 is about 10109.9456477273. The cubic root of 102211001 is about 467.5548293762.

Adding to 102211001 its reverse (100112201), we get a palindrome (202323202).

The spelling of 102211001 in words is "one hundred two million, two hundred eleven thousand, one".