1021135155222 has 256 divisors, whose sum is σ = 2675041044480. Its totient is φ = 252332236800.

The previous prime is 1021135155191. The next prime is 1021135155247. The reversal of 1021135155222 is 2225515311201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021135155222.

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 127 ways as a sum of consecutive naturals, for example, 962426572 + ... + 962427632.

It is an arithmetic number, because the mean of its divisors is an integer number (10449379080).

Almost surely, 2^{1021135155222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021135155222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337520522240).

1021135155222 is an abundant number, since it is smaller than the sum of its proper divisors (1653905889258).

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

1021135155222 is a wasteful number, since it uses less digits than its factorization.

1021135155222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 1021135155222 in words is "one trillion, twenty-one billion, one hundred thirty-five million, one hundred fifty-five thousand, two hundred twenty-two".