1201103003221 has 12 divisors (see below), whose sum is σ = 1331904040236. Its totient is φ = 1082248872320.

The previous prime is 1201103003201. The next prime is 1201103003237. The reversal of 1201103003221 is 1223003011021.

It can be written as a sum of positive squares in 2 ways, for example, as 468897627121 + 732205376100 = 684761^2 + 855690^2 .

It is not a de Polignac number, because 1201103003221 - 2¹⁷ = 1201102872149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201103003195 and 1201103003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201103003201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43908766 + ... + 43936111.

It is an arithmetic number, because the mean of its divisors is an integer number (110992003353).

Almost surely, 2^{1201103003221} is an apocalyptic number.

1201103003221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201103003221 is a deficient number, since it is larger than the sum of its proper divisors (130801037015).

1201103003221 is a wasteful number, since it uses less digits than its factorization.

1201103003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87845012 (or 87845001 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1201103003221 its reverse (1223003011021), we get a palindrome (2424106014242).

The spelling of 1201103003221 in words is "one trillion, two hundred one billion, one hundred three million, three thousand, two hundred twenty-one".