1101221004001 has 16 divisors (see below), whose sum is σ = 1194358239360. Its totient is φ = 1012199569920.

The previous prime is 1101221003977. The next prime is 1101221004061. The reversal of 1101221004001 is 1004001221011.

It is a cyclic number.

It is not a de Polignac number, because 1101221004001 - 2¹¹ = 1101221001953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101221004061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771600 + ... + 4053073.

It is an arithmetic number, because the mean of its divisors is an integer number (74647389960).

Almost surely, 2^{1101221004001} is an apocalyptic number.

It is an amenable number.

1101221004001 is a deficient number, since it is larger than the sum of its proper divisors (93137235359).

1101221004001 is a wasteful number, since it uses less digits than its factorization.

1101221004001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7824936.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1101221004001 its reverse (1004001221011), we get a palindrome (2105222225012).

The spelling of 1101221004001 in words is "one trillion, one hundred one billion, two hundred twenty-one million, four thousand, one".