1121266201 has 8 divisors (see below), whose sum is σ = 1224249408. Its totient is φ = 1018458000.

The previous prime is 1121266199. The next prime is 1121266243. The reversal of 1121266201 is 1026621211.

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 1121266201 - 2¹ = 1121266199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121266271) 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 7 ways as a sum of consecutive naturals, for example, 30165 + ... + 56146.

It is an arithmetic number, because the mean of its divisors is an integer number (153031176).

Almost surely, 2^1121266201 is an apocalyptic number.

1121266201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121266201 is a deficient number, since it is larger than the sum of its proper divisors (102983207).

1121266201 is a wasteful number, since it uses less digits than its factorization.

1121266201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87503.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1121266201 is about 33485.3132134075. The cubic root of 1121266201 is about 1038.8900266272.

Adding to 1121266201 its reverse (1026621211), we get a palindrome (2147887412).

It can be divided in two parts, 11 and 21266201, that added together give a palindrome (21266212).

The spelling of 1121266201 in words is "one billion, one hundred twenty-one million, two hundred sixty-six thousand, two hundred one".