1202231320221 has 16 divisors (see below), whose sum is σ = 1656911093760. Its totient is φ = 774589144560.

The previous prime is 1202231320189. The next prime is 1202231320223. The reversal of 1202231320221 is 1220231322021.

It is not a de Polignac number, because 1202231320221 - 2⁵ = 1202231320189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202231320223) 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, 8630241 + ... + 8768438.

It is an arithmetic number, because the mean of its divisors is an integer number (103556943360).

Almost surely, 2^{1202231320221} is an apocalyptic number.

It is an amenable number.

1202231320221 is a deficient number, since it is larger than the sum of its proper divisors (454679773539).

1202231320221 is a wasteful number, since it uses less digits than its factorization.

1202231320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17399456.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1202231320221 its reverse (1220231322021), we get a palindrome (2422462642242).

The spelling of 1202231320221 in words is "one trillion, two hundred two billion, two hundred thirty-one million, three hundred twenty thousand, two hundred twenty-one".