1102125121 has 2 divisors, whose sum is σ = 1102125122. Its totient is φ = 1102125120.

The previous prime is 1102125097. The next prime is 1102125161. The reversal of 1102125121 is 1215212011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 951105600 + 151019521 = 30840^2 + 12289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102125121 - 2¹⁵ = 1102092353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102125095 and 1102125104.

It is not a weakly prime, because it can be changed into another prime (1102125161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551062560 + 551062561.

It is an arithmetic number, because the mean of its divisors is an integer number (551062561).

Almost surely, 2^1102125121 is an apocalyptic number.

It is an amenable number.

1102125121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102125121 is an equidigital number, since it uses as much as digits as its factorization.

1102125121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1102125121 is about 33198.2698494967. The cubic root of 1102125121 is about 1032.9444515055.

Adding to 1102125121 its reverse (1215212011), we get a palindrome (2317337132).

The spelling of 1102125121 in words is "one billion, one hundred two million, one hundred twenty-five thousand, one hundred twenty-one".