1101222221201 has 4 divisors (see below), whose sum is σ = 1101225446400. Its totient is φ = 1101218996004.

The previous prime is 1101222221191. The next prime is 1101222221213. The reversal of 1101222221201 is 1021222221011.

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 not a de Polignac number, because 1101222221201 - 2²² = 1101218026897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101222221201.

It is not an unprimeable number, because it can be changed into a prime (1101222227201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030361 + ... + 1806678.

It is an arithmetic number, because the mean of its divisors is an integer number (275306361600).

Almost surely, 2^{1101222221201} is an apocalyptic number.

It is an amenable number.

1101222221201 is a deficient number, since it is larger than the sum of its proper divisors (3225199).

1101222221201 is an equidigital number, since it uses as much as digits as its factorization.

1101222221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225198.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1101222221201 its reverse (1021222221011), we get a palindrome (2122444442212).

The spelling of 1101222221201 in words is "one trillion, one hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred one".