1021122040055 has 32 divisors (see below), whose sum is σ = 1324242951360. Its totient is φ = 751410017280.

The previous prime is 1021122040027. The next prime is 1021122040063. The reversal of 1021122040055 is 5500402211201.

It is not a de Polignac number, because 1021122040055 - 2⁸ = 1021122039799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021122040055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86684156 + ... + 86695934.

It is an arithmetic number, because the mean of its divisors is an integer number (41382592230).

Almost surely, 2^{1021122040055} is an apocalyptic number.

1021122040055 is a deficient number, since it is larger than the sum of its proper divisors (303120911305).

1021122040055 is a wasteful number, since it uses less digits than its factorization.

1021122040055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16371.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 1021122040055 its reverse (5500402211201), we get a palindrome (6521524251256).

The spelling of 1021122040055 in words is "one trillion, twenty-one billion, one hundred twenty-two million, forty thousand, fifty-five".