1121400201 has 8 divisors (see below), whose sum is σ = 1495670464. Its totient is φ = 747365040.

The previous prime is 1121400193. The next prime is 1121400251. The reversal of 1121400201 is 1020041211.

It is a happy number.

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

It is not a de Polignac number, because 1121400201 - 2³ = 1121400193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121400251) 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, 47326 + ... + 66951.

It is an arithmetic number, because the mean of its divisors is an integer number (186958808).

Almost surely, 2^1121400201 is an apocalyptic number.

It is an amenable number.

1121400201 is a deficient number, since it is larger than the sum of its proper divisors (374270263).

1121400201 is a wasteful number, since it uses less digits than its factorization.

1121400201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117551.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1121400201 is about 33487.3140308386. The cubic root of 1121400201 is about 1038.9314101150.

Adding to 1121400201 its reverse (1020041211), we get a palindrome (2141441412).

The spelling of 1121400201 in words is "one billion, one hundred twenty-one million, four hundred thousand, two hundred one".