1121020102101 has 16 divisors (see below), whose sum is σ = 1507989180096. Its totient is φ = 740699479296.

The previous prime is 1121020102091. The next prime is 1121020102109. The reversal of 1121020102101 is 1012010201211.

It is not a de Polignac number, because 1121020102101 - 2¹⁵ = 1121020069333 is a prime.

It is a super-2 number, since 2×1121020102101² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121020102109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9055246 + ... + 9178208.

It is an arithmetic number, because the mean of its divisors is an integer number (94249323756).

Almost surely, 2^{1121020102101} is an apocalyptic number.

It is an amenable number.

1121020102101 is a deficient number, since it is larger than the sum of its proper divisors (386969077995).

1121020102101 is a wasteful number, since it uses less digits than its factorization.

1121020102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149972.

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

Adding to 1121020102101 its reverse (1012010201211), we get a palindrome (2133030303312).

The spelling of 1121020102101 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred two thousand, one hundred one".