1202220221 has 8 divisors (see below), whose sum is σ = 1224206784. Its totient is φ = 1180432960.

The previous prime is 1202220199. The next prime is 1202220247. The reversal of 1202220221 is 1220222021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1202220221 - 2¹⁰ = 1202219197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202220196 and 1202220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202220251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37625 + ... + 61806.

It is an arithmetic number, because the mean of its divisors is an integer number (153025848).

Almost surely, 2^1202220221 is an apocalyptic number.

It is an amenable number.

1202220221 is a deficient number, since it is larger than the sum of its proper divisors (21986563).

1202220221 is a wasteful number, since it uses less digits than its factorization.

1202220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99651.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1202220221 is about 34673.0474720639. The cubic root of 1202220221 is about 1063.3135367647.

Adding to 1202220221 its reverse (1220222021), we get a palindrome (2422442242).

The spelling of 1202220221 in words is "one billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".