1102210121 has 4 divisors (see below), whose sum is σ = 1160221200. Its totient is φ = 1044199044.

The previous prime is 1102210049. The next prime is 1102210141. The reversal of 1102210121 is 1210122011.

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 a de Polignac number, because none of the positive numbers 2^k-1102210121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102210141) 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, 29005511 + ... + 29005548.

It is an arithmetic number, because the mean of its divisors is an integer number (290055300).

Almost surely, 2^1102210121 is an apocalyptic number.

It is an amenable number.

1102210121 is a deficient number, since it is larger than the sum of its proper divisors (58011079).

1102210121 is an equidigital number, since it uses as much as digits as its factorization.

1102210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58011078.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1102210121 is about 33199.5500120107. The cubic root of 1102210121 is about 1032.9710056658.

Adding to 1102210121 its reverse (1210122011), we get a palindrome (2312332132).

The spelling of 1102210121 in words is "one billion, one hundred two million, two hundred ten thousand, one hundred twenty-one".