1102121452525 has 12 divisors (see below), whose sum is σ = 1370941748532. Its totient is φ = 878915776640.

The previous prime is 1102121452513. The next prime is 1102121452591. The reversal of 1102121452525 is 5252541212011.

It can be written as a sum of positive squares in 6 ways, for example, as 1254647241 + 1100866805284 = 35421^2 + 1049222^2 .

It is not a de Polignac number, because 1102121452525 - 2¹¹ = 1102121450477 is a prime.

It is a super-2 number, since 2×1102121452525² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69526552 + ... + 69542401.

It is an arithmetic number, because the mean of its divisors is an integer number (114245145711).

Almost surely, 2^{1102121452525} is an apocalyptic number.

It is an amenable number.

1102121452525 is a deficient number, since it is larger than the sum of its proper divisors (268820296007).

1102121452525 is a wasteful number, since it uses less digits than its factorization.

1102121452525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139069280 (or 139069275 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 1102121452525 its reverse (5252541212011), we get a palindrome (6354662664536).

The spelling of 1102121452525 in words is "one trillion, one hundred two billion, one hundred twenty-one million, four hundred fifty-two thousand, five hundred twenty-five".