1100202121 has 8 divisors (see below), whose sum is σ = 1136213504. Its totient is φ = 1064223360.

The previous prime is 1100202113. The next prime is 1100202133. The reversal of 1100202121 is 1212020011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1100202121 - 2³ = 1100202113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100202098 and 1100202107.

It is not an unprimeable number, because it can be changed into a prime (1100202221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73540 + ... + 87226.

It is an arithmetic number, because the mean of its divisors is an integer number (142026688).

Almost surely, 2^1100202121 is an apocalyptic number.

It is an amenable number.

1100202121 is a deficient number, since it is larger than the sum of its proper divisors (36011383).

1100202121 is a wasteful number, since it uses less digits than its factorization.

1100202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16311.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1100202121 is about 33169.2948523179. The cubic root of 1100202121 is about 1032.3433374901.

Adding to 1100202121 its reverse (1212020011), we get a palindrome (2312222132).

The spelling of 1100202121 in words is "one billion, one hundred million, two hundred two thousand, one hundred twenty-one".