222030011201221 has 4 divisors (see below), whose sum is σ = 222037114147200. Its totient is φ = 222022908255244.

The previous prime is 222030011201203. The next prime is 222030011201227. The reversal of 222030011201221 is 122102110030222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222030011201221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222030011201227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3551426101 + ... + 3551488618.

It is an arithmetic number, because the mean of its divisors is an integer number (55509278536800).

Almost surely, 2^{222030011201221} is an apocalyptic number.

It is an amenable number.

222030011201221 is a deficient number, since it is larger than the sum of its proper divisors (7102945979).

222030011201221 is an equidigital number, since it uses as much as digits as its factorization.

222030011201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7102945978.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222030011201221 its reverse (122102110030222), we get a palindrome (344132121231443).

The spelling of 222030011201221 in words is "two hundred twenty-two trillion, thirty billion, eleven million, two hundred one thousand, two hundred twenty-one".