1200101 has 8 divisors (see below), whose sum is σ = 1380864. Its totient is φ = 1021680.

The previous prime is 1200083. The next prime is 1200109. The reversal of 1200101 is 1010021.

It is a happy number.

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-1200101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200109) 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, 716 + ... + 1706.

It is an arithmetic number, because the mean of its divisors is an integer number (172608).

2^1200101 is an apocalyptic number.

It is an amenable number.

1200101 is a deficient number, since it is larger than the sum of its proper divisors (180763).

1200101 is an equidigital number, since it uses as much as digits as its factorization.

1200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1200101 is about 1095.4912140223. The cubic root of 1200101 is about 106.2688381823.

Adding to 1200101 its reverse (1010021), we get a palindrome (2210122).

Multiplying 1200101 by its reverse (1010021), we get a palindrome (1212127212121).

The spelling of 1200101 in words is "one million, two hundred thousand, one hundred one".