1101222210221 has 8 divisors (see below), whose sum is σ = 1259003582784. Its totient is φ = 943556816160.

The previous prime is 1101222210217. The next prime is 1101222210239. The reversal of 1101222210221 is 1220122221011.

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

It is not a de Polignac number, because 1101222210221 - 2² = 1101222210217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101222210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101222210211) 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, 28974275 + ... + 29012256.

It is an arithmetic number, because the mean of its divisors is an integer number (157375447848).

Almost surely, 2^{1101222210221} is an apocalyptic number.

It is an amenable number.

1101222210221 is a deficient number, since it is larger than the sum of its proper divisors (157781372563).

1101222210221 is an equidigital number, since it uses as much as digits as its factorization.

1101222210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57989251.

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

Adding to 1101222210221 its reverse (1220122221011), we get a palindrome (2321344431232).

The spelling of 1101222210221 in words is "one trillion, one hundred one billion, two hundred twenty-two million, two hundred ten thousand, two hundred twenty-one".