1201222003 has 4 divisors (see below), whose sum is σ = 1202185000. Its totient is φ = 1200259008.

The previous prime is 1201221961. The next prime is 1201222027. The reversal of 1201222003 is 3002221021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3002221021 = 47 ⋅63877043.

It is a cyclic number.

It is not a de Polignac number, because 1201222003 - 2²¹ = 1199124851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201222073) 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, 479625 + ... + 482122.

It is an arithmetic number, because the mean of its divisors is an integer number (300546250).

Almost surely, 2^1201222003 is an apocalyptic number.

1201222003 is a deficient number, since it is larger than the sum of its proper divisors (962997).

1201222003 is an equidigital number, since it uses as much as digits as its factorization.

1201222003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962996.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1201222003 is about 34658.6497573117. The cubic root of 1201222003 is about 1063.0191612422.

Adding to 1201222003 its reverse (3002221021), we get a palindrome (4203443024).

The spelling of 1201222003 in words is "one billion, two hundred one million, two hundred twenty-two thousand, three".