1021122320 has 40 divisors (see below), whose sum is σ = 2499066240. Its totient is φ = 386951040.

The previous prime is 1021122313. The next prime is 1021122359. The reversal of 1021122320 is 232211201.

It is a happy number.

1021122320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1021122295 and 1021122304.

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, 334376 + ... + 337415.

It is an arithmetic number, because the mean of its divisors is an integer number (62476656).

Almost surely, 2^1021122320 is an apocalyptic number.

1021122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021122320 is an abundant number, since it is smaller than the sum of its proper divisors (1477943920).

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

1021122320 is a wasteful number, since it uses less digits than its factorization.

1021122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671823 (or 671817 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1021122320 is about 31955.0046158657. The cubic root of 1021122320 is about 1006.9917744920.

Adding to 1021122320 its reverse (232211201), we get a palindrome (1253333521).

The spelling of 1021122320 in words is "one billion, twenty-one million, one hundred twenty-two thousand, three hundred twenty".