1203122201 has 4 divisors (see below), whose sum is σ = 1215034404. Its totient is φ = 1191210000.

The previous prime is 1203122191. The next prime is 1203122269. The reversal of 1203122201 is 1022213021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1022213021 = 101 ⋅10120921.

It can be written as a sum of positive squares in 2 ways, for example, as 1144062976 + 59059225 = 33824^2 + 7685^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203122201 - 2¹⁰ = 1203121177 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 (1203121201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5955950 + ... + 5956151.

It is an arithmetic number, because the mean of its divisors is an integer number (303758601).

Almost surely, 2^1203122201 is an apocalyptic number.

It is an amenable number.

1203122201 is a deficient number, since it is larger than the sum of its proper divisors (11912203).

1203122201 is a wasteful number, since it uses less digits than its factorization.

1203122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11912202.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1203122201 is about 34686.0519661722. The cubic root of 1203122201 is about 1063.5793914924.

Adding to 1203122201 its reverse (1022213021), we get a palindrome (2225335222).

The spelling of 1203122201 in words is "one billion, two hundred three million, one hundred twenty-two thousand, two hundred one".