1221222133201 has 8 divisors (see below), whose sum is σ = 1456364283264. Its totient is φ = 1001250444480.

The previous prime is 1221222133199. The next prime is 1221222133211. The reversal of 1221222133201 is 1023312221221.

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 1221222133201 - 2¹ = 1221222133199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221222133211) 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, 3792615160 + ... + 3792615481.

It is an arithmetic number, because the mean of its divisors is an integer number (182045535408).

Almost surely, 2^{1221222133201} is an apocalyptic number.

It is an amenable number.

1221222133201 is a deficient number, since it is larger than the sum of its proper divisors (235142150063).

1221222133201 is an equidigital number, since it uses as much as digits as its factorization.

1221222133201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7585230671.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1221222133201 its reverse (1023312221221), we get a palindrome (2244534354422).

The spelling of 1221222133201 in words is "one trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred one".