1021130534220 has 24 divisors (see below), whose sum is σ = 2859165495984. Its totient is φ = 272301475776.

The previous prime is 1021130534191. The next prime is 1021130534233. The reversal of 1021130534220 is 224350311201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8509421059 + ... + 8509421178.

It is an arithmetic number, because the mean of its divisors is an integer number (119131895666).

Almost surely, 2^{1021130534220} is an apocalyptic number.

1021130534220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021130534220 is an abundant number, since it is smaller than the sum of its proper divisors (1838034961764).

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

1021130534220 is a wasteful number, since it uses less digits than its factorization.

1021130534220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17018842249 (or 17018842247 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 1021130534220 its reverse (224350311201), we get a palindrome (1245480845421).

The spelling of 1021130534220 in words is "one trillion, twenty-one billion, one hundred thirty million, five hundred thirty-four thousand, two hundred twenty".