1102043202121 has 16 divisors (see below), whose sum is σ = 1187496216720. Its totient is φ = 1019030538240.

The previous prime is 1102043202109. The next prime is 1102043202163. The reversal of 1102043202121 is 1212023402011.

It can be written as a sum of positive squares in 8 ways, for example, as 7014900025 + 1095028302096 = 83755^2 + 1046436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102043202121 - 2¹⁹ = 1102042677833 is a prime.

It is a super-2 number, since 2×1102043202121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102043202191) 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, 2082150 + ... + 2557231.

It is an arithmetic number, because the mean of its divisors is an integer number (74218513545).

Almost surely, 2^{1102043202121} is an apocalyptic number.

It is an amenable number.

1102043202121 is a deficient number, since it is larger than the sum of its proper divisors (85453014599).

1102043202121 is a wasteful number, since it uses less digits than its factorization.

1102043202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639644.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1102043202121 its reverse (1212023402011), we get a palindrome (2314066604132).

It can be divided in two parts, 1102043 and 202121, that added together give a square (1304164 = 1142²).

The spelling of 1102043202121 in words is "one trillion, one hundred two billion, forty-three million, two hundred two thousand, one hundred twenty-one".