1101001201221 has 8 divisors (see below), whose sum is σ = 1473225807744. Its totient is φ = 731388697760.

The previous prime is 1101001201213. The next prime is 1101001201249. The reversal of 1101001201221 is 1221021001011.

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 1101001201221 - 2³ = 1101001201213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1101001201197 and 1101001201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101001205221) 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, 653024781 + ... + 653026466.

It is an arithmetic number, because the mean of its divisors is an integer number (184153225968).

Almost surely, 2^{1101001201221} is an apocalyptic number.

It is an amenable number.

1101001201221 is a deficient number, since it is larger than the sum of its proper divisors (372224606523).

1101001201221 is a wasteful number, since it uses less digits than its factorization.

1101001201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306051531.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101001201221 its reverse (1221021001011), we get a palindrome (2322022202232).

The spelling of 1101001201221 in words is "one trillion, one hundred one billion, one million, two hundred one thousand, two hundred twenty-one".