1102200121 has 4 divisors (see below), whose sum is σ = 1202400144. Its totient is φ = 1002000100.

The previous prime is 1102200109. The next prime is 1102200139. The reversal of 1102200121 is 1210022011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1102200121 - 2¹³ = 1102191929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102200098 and 1102200107.

It is not an unprimeable number, because it can be changed into a prime (1102200221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50099995 + ... + 50100016.

It is an arithmetic number, because the mean of its divisors is an integer number (300600036).

Almost surely, 2^1102200121 is an apocalyptic number.

1102200121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102200121 is a deficient number, since it is larger than the sum of its proper divisors (100200023).

1102200121 is a wasteful number, since it uses less digits than its factorization.

1102200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100200022.

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

The square root of 1102200121 is about 33199.3994072182. The cubic root of 1102200121 is about 1032.9678817178.

Adding to 1102200121 its reverse (1210022011), we get a palindrome (2312222132).

The spelling of 1102200121 in words is "one billion, one hundred two million, two hundred thousand, one hundred twenty-one".