1101021154552 has 16 divisors (see below), whose sum is σ = 2252088725400. Its totient is φ = 500464161120.

The previous prime is 1101021154549. The next prime is 1101021154577. The reversal of 1101021154552 is 2554511201011.

It is a super-3 number, since 3×1101021154552³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1101021154552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6255801927 + ... + 6255802102.

Almost surely, 2^{1101021154552} is an apocalyptic number.

It is an amenable number.

1101021154552 is an abundant number, since it is smaller than the sum of its proper divisors (1151067570848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101021154552 is a wasteful number, since it uses less digits than its factorization.

1101021154552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12511604046 (or 12511604042 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

Adding to 1101021154552 its reverse (2554511201011), we get a palindrome (3655532355563).

The spelling of 1101021154552 in words is "one trillion, one hundred one billion, twenty-one million, one hundred fifty-four thousand, five hundred fifty-two".