1021641122331 has 12 divisors (see below), whose sum is σ = 1475740685952. Its totient is φ = 681077077296.

The previous prime is 1021641122329. The next prime is 1021641122371. The reversal of 1021641122331 is 1332211461201.

1021641122331 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 641 + 12 + 2 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 1021641122331 - 2¹ = 1021641122329 is a prime.

It is a super-2 number, since 2×1021641122331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021641122295 and 1021641122304.

It is not an unprimeable number, because it can be changed into a prime (1021641122311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1030971 + ... + 1762436.

It is an arithmetic number, because the mean of its divisors is an integer number (122978390496).

Almost surely, 2^{1021641122331} is an apocalyptic number.

1021641122331 is a deficient number, since it is larger than the sum of its proper divisors (454099563621).

1021641122331 is a wasteful number, since it uses less digits than its factorization.

1021641122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834050 (or 2834047 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 1021641122331 its reverse (1332211461201), we get a palindrome (2353852583532).

The spelling of 1021641122331 in words is "one trillion, twenty-one billion, six hundred forty-one million, one hundred twenty-two thousand, three hundred thirty-one".