102220001 has 8 divisors (see below), whose sum is σ = 110525184. Its totient is φ = 93978000.

The previous prime is 102219977. The next prime is 102220007. The reversal of 102220001 is 100022201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102220001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102220007) 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, 12401 + ... + 18926.

It is an arithmetic number, because the mean of its divisors is an integer number (13815648).

Almost surely, 2^102220001 is an apocalyptic number.

It is an amenable number.

102220001 is a deficient number, since it is larger than the sum of its proper divisors (8305183).

102220001 is a wasteful number, since it uses less digits than its factorization.

102220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31591.

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

The square root of 102220001 is about 10110.3907441800. The cubic root of 102220001 is about 467.5685521977.

Adding to 102220001 its reverse (100022201), we get a palindrome (202242202).

The spelling of 102220001 in words is "one hundred two million, two hundred twenty thousand, one".