1101201110021 has 16 divisors (see below), whose sum is σ = 1176589828800. Its totient is φ = 1027558908288.

The previous prime is 1101201109991. The next prime is 1101201110057. The reversal of 1101201110021 is 1200111021011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101201110021 is a prime.

It is a super-2 number, since 2×1101201110021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101201109984 and 1101201110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101201113021) 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, 12856625 + ... + 12941993.

It is an arithmetic number, because the mean of its divisors is an integer number (73536864300).

Almost surely, 2^{1101201110021} is an apocalyptic number.

It is an amenable number.

1101201110021 is a deficient number, since it is larger than the sum of its proper divisors (75388718779).

1101201110021 is a wasteful number, since it uses less digits than its factorization.

1101201110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95588.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1101201110021 its reverse (1200111021011), we get a palindrome (2301312131032).

The spelling of 1101201110021 in words is "one trillion, one hundred one billion, two hundred one million, one hundred ten thousand, twenty-one".