1021212453055 has 64 divisors (see below), whose sum is σ = 1337428684800. Its totient is φ = 746075473920.

The previous prime is 1021212453031. The next prime is 1021212453067. The reversal of 1021212453055 is 5503542121201.

It is not a de Polignac number, because 1021212453055 - 2¹⁹ = 1021211928767 is a prime.

It is a super-2 number, since 2×1021212453055² (a number of 25 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 in 63 ways as a sum of consecutive naturals, for example, 115217554 + ... + 115226416.

It is an arithmetic number, because the mean of its divisors is an integer number (20897323200).

Almost surely, 2^{1021212453055} is an apocalyptic number.

1021212453055 is a deficient number, since it is larger than the sum of its proper divisors (316216231745).

1021212453055 is a wasteful number, since it uses less digits than its factorization.

1021212453055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9344.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1021212453055 its reverse (5503542121201), we get a palindrome (6524754574256).

The spelling of 1021212453055 in words is "one trillion, twenty-one billion, two hundred twelve million, four hundred fifty-three thousand, fifty-five".