1221024101024 has 96 divisors (see below), whose sum is σ = 3021585348096. Its totient is φ = 472764948480.

The previous prime is 1221024101009. The next prime is 1221024101051. The reversal of 1221024101024 is 4201014201221.

It is a junction number, because it is equal to n+sod(n) for n = 1221024100987 and 1221024101005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4323857 + ... + 4597584.

It is an arithmetic number, because the mean of its divisors is an integer number (31474847376).

Almost surely, 2^{1221024101024} is an apocalyptic number.

1221024101024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1221024101024 is an abundant number, since it is smaller than the sum of its proper divisors (1800561247072).

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

1221024101024 is a wasteful number, since it uses less digits than its factorization.

1221024101024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8921518 (or 8921510 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1221024101024 its reverse (4201014201221), we get a palindrome (5422038302245).

The spelling of 1221024101024 in words is "one trillion, two hundred twenty-one billion, twenty-four million, one hundred one thousand, twenty-four".