1021162171355 has 32 divisors (see below), whose sum is σ = 1270498756608. Its totient is φ = 787099622400.

The previous prime is 1021162171331. The next prime is 1021162171387. The reversal of 1021162171355 is 5531712611201.

1021162171355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021162171355 - 2⁶ = 1021162171291 is a prime.

It is a Duffinian 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, 36183200 + ... + 36211410.

It is an arithmetic number, because the mean of its divisors is an integer number (39703086144).

Almost surely, 2^{1021162171355} is an apocalyptic number.

1021162171355 is a deficient number, since it is larger than the sum of its proper divisors (249336585253).

1021162171355 is a wasteful number, since it uses less digits than its factorization.

1021162171355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29267.

The product of its (nonzero) digits is 12600, while the sum is 35.

Adding to 1021162171355 its reverse (5531712611201), we get a palindrome (6552874782556).

The spelling of 1021162171355 in words is "one trillion, twenty-one billion, one hundred sixty-two million, one hundred seventy-one thousand, three hundred fifty-five".