1022055312 has 20 divisors (see below), whose sum is σ = 2640309680. Its totient is φ = 340685088.

The previous prime is 1022055271. The next prime is 1022055343. The reversal of 1022055312 is 2135502201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10646362 + ... + 10646457.

It is an arithmetic number, because the mean of its divisors is an integer number (132015484).

Almost surely, 2^1022055312 is an apocalyptic number.

1022055312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022055312 is an abundant number, since it is smaller than the sum of its proper divisors (1618254368).

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

1022055312 is a wasteful number, since it uses less digits than its factorization.

1022055312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21292830 (or 21292824 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1022055312 is about 31969.5998098193. The cubic root of 1022055312 is about 1007.2983748061.

Adding to 1022055312 its reverse (2135502201), we get a palindrome (3157557513).

The spelling of 1022055312 in words is "one billion, twenty-two million, fifty-five thousand, three hundred twelve".