1220203441 has 16 divisors (see below), whose sum is σ = 1304735040. Its totient is φ = 1137149440.

The previous prime is 1220203423. The next prime is 1220203447. The reversal of 1220203441 is 1443020221.

It is a cyclic number.

It is not a de Polignac number, because 1220203441 - 2⁵ = 1220203409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220203447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 854370 + ... + 855796.

It is an arithmetic number, because the mean of its divisors is an integer number (81545940).

Almost surely, 2^1220203441 is an apocalyptic number.

It is an amenable number.

1220203441 is a deficient number, since it is larger than the sum of its proper divisors (84531599).

1220203441 is a wasteful number, since it uses less digits than its factorization.

1220203441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1220203441 is about 34931.4105211914. The cubic root of 1220203441 is about 1068.5891210436.

Adding to 1220203441 its reverse (1443020221), we get a palindrome (2663223662).

The spelling of 1220203441 in words is "one billion, two hundred twenty million, two hundred three thousand, four hundred forty-one".