1021022231020 has 48 divisors (see below), whose sum is σ = 2350823328000. Its totient is φ = 369415062720.

The previous prime is 1021022230967. The next prime is 1021022231071. The reversal of 1021022231020 is 201322201201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021022230985 and 1021022231003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11617050 + ... + 11704609.

It is an arithmetic number, because the mean of its divisors is an integer number (48975486000).

Almost surely, 2^{1021022231020} is an apocalyptic number.

1021022231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021022231020 is an abundant number, since it is smaller than the sum of its proper divisors (1329801096980).

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

1021022231020 is a wasteful number, since it uses less digits than its factorization.

1021022231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23321878 (or 23321876 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1021022231020 its reverse (201322201201), we get a palindrome (1222344432221).

The spelling of 1021022231020 in words is "one trillion, twenty-one billion, twenty-two million, two hundred thirty-one thousand, twenty".