1021122152404 has 12 divisors (see below), whose sum is σ = 1788792805044. Its totient is φ = 510038493824.

The previous prime is 1021122152389. The next prime is 1021122152411. The reversal of 1021122152404 is 4042512211201.

It can be written as a sum of positive squares in 2 ways, for example, as 572824949904 + 448297202500 = 756852^2 + 669550^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130641199 + ... + 130649014.

It is an arithmetic number, because the mean of its divisors is an integer number (149066067087).

Almost surely, 2^{1021122152404} is an apocalyptic number.

It is an amenable number.

1021122152404 is a deficient number, since it is larger than the sum of its proper divisors (767670652640).

1021122152404 is a wasteful number, since it uses less digits than its factorization.

1021122152404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261291194 (or 261291192 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 1021122152404 its reverse (4042512211201), we get a palindrome (5063634363605).

The spelling of 1021122152404 in words is "one trillion, twenty-one billion, one hundred twenty-two million, one hundred fifty-two thousand, four hundred four".