1100211221001 has 16 divisors (see below), whose sum is σ = 1505764871424. Its totient is φ = 714224294784.

The previous prime is 1100211220993. The next prime is 1100211221029. The reversal of 1100211221001 is 1001221120011.

It is not a de Polignac number, because 1100211221001 - 2³ = 1100211220993 is a prime.

It is a super-2 number, since 2×1100211221001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1100211221051) 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, 19776580 + ... + 19832133.

It is an arithmetic number, because the mean of its divisors is an integer number (94110304464).

Almost surely, 2^{1100211221001} is an apocalyptic number.

It is an amenable number.

1100211221001 is a deficient number, since it is larger than the sum of its proper divisors (405553650423).

1100211221001 is a wasteful number, since it uses less digits than its factorization.

1100211221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39608960.

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

Adding to 1100211221001 its reverse (1001221120011), we get a palindrome (2101432341012).

The spelling of 1100211221001 in words is "one trillion, one hundred billion, two hundred eleven million, two hundred twenty-one thousand, one".