12101026552 has 8 divisors (see below), whose sum is σ = 22689424800. Its totient is φ = 6050513272.

The previous prime is 12101026517. The next prime is 12101026577. The reversal of 12101026552 is 25562010121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12101026552² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756314152 + ... + 756314167.

It is an arithmetic number, because the mean of its divisors is an integer number (2836178100).

Almost surely, 2^12101026552 is an apocalyptic number.

It is an amenable number.

12101026552 is a deficient number, since it is larger than the sum of its proper divisors (10588398248).

12101026552 is a wasteful number, since it uses less digits than its factorization.

12101026552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512628325 (or 1512628321 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 12101026552 its reverse (25562010121), we get a palindrome (37663036673).

The spelling of 12101026552 in words is "twelve billion, one hundred one million, twenty-six thousand, five hundred fifty-two".