1210021532055 has 48 divisors (see below), whose sum is σ = 2402972829504. Its totient is φ = 551773209600.

The previous prime is 1210021531993. The next prime is 1210021532129. The reversal of 1210021532055 is 5502351200121.

1210021532055 is a `hidden beast` number, since 1 + 2 + 100 + 21 + 532 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 1210021532055 - 2⁸ = 1210021531799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4663384 + ... + 4916013.

It is an arithmetic number, because the mean of its divisors is an integer number (50061933948).

Almost surely, 2^{1210021532055} is an apocalyptic number.

1210021532055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1210021532055 is a deficient number, since it is larger than the sum of its proper divisors (1192951297449).

1210021532055 is a wasteful number, since it uses less digits than its factorization.

1210021532055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9579816 (or 9579813 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 1210021532055 its reverse (5502351200121), we get a palindrome (6712372732176).

The spelling of 1210021532055 in words is "one trillion, two hundred ten billion, twenty-one million, five hundred thirty-two thousand, fifty-five".