1222021201 has 8 divisors (see below), whose sum is σ = 1237410720. Its totient is φ = 1206647712.

The previous prime is 1222021189. The next prime is 1222021219. The reversal of 1222021201 is 1021202221.

It is a happy number.

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 1222021201 - 2¹¹ = 1222019153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222021501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243445 + ... + 248413.

It is an arithmetic number, because the mean of its divisors is an integer number (154676340).

Almost surely, 2^1222021201 is an apocalyptic number.

It is an amenable number.

1222021201 is a deficient number, since it is larger than the sum of its proper divisors (15389519).

1222021201 is an equidigital number, since it uses as much as digits as its factorization.

1222021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1222021201 is about 34957.4198275559. The cubic root of 1222021201 is about 1069.1194901964.

Adding to 1222021201 its reverse (1021202221), we get a palindrome (2243223422).

The spelling of 1222021201 in words is "one billion, two hundred twenty-two million, twenty-one thousand, two hundred one".