1121201 has 8 divisors (see below), whose sum is σ = 1200744. Its totient is φ = 1043200.

The previous prime is 1121191. The next prime is 1121203. The reversal of 1121201 is 1021211.

It can be written as a sum of positive squares in 4 ways, for example, as 456976 + 664225 = 676^2 + 815^2 .

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 1121201 - 2¹⁸ = 859057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121203) 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, 1391 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (150093).

2^1121201 is an apocalyptic number.

It is an amenable number.

1121201 is a deficient number, since it is larger than the sum of its proper divisors (79543).

1121201 is a wasteful number, since it uses less digits than its factorization.

1121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771.

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

The square root of 1121201 is about 1058.8677915585. The cubic root of 1121201 is about 103.8869889280.

Adding to 1121201 its reverse (1021211), we get a palindrome (2142412).

It can be divided in two parts, 11 and 21201, that added together give a palindrome (21212).

The spelling of 1121201 in words is "one million, one hundred twenty-one thousand, two hundred one".