1102102121 has 2 divisors, whose sum is σ = 1102102122. Its totient is φ = 1102102120.

The previous prime is 1102102103. The next prime is 1102102151. The reversal of 1102102121 is 1212012011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725548096 + 376554025 = 26936^2 + 19405^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102102121 - 2²² = 1097907817 is a prime.

It is a super-2 number, since 2×1102102121² = 2429258170225397282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1102102151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551051060 + 551051061.

It is an arithmetic number, because the mean of its divisors is an integer number (551051061).

Almost surely, 2^1102102121 is an apocalyptic number.

It is an amenable number.

1102102121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102102121 is an equidigital number, since it uses as much as digits as its factorization.

1102102121 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1102102121 is about 33197.9234440951. The cubic root of 1102102121 is about 1032.9372660275.

Adding to 1102102121 its reverse (1212012011), we get a palindrome (2314114132).

The spelling of 1102102121 in words is "one billion, one hundred two million, one hundred two thousand, one hundred twenty-one".