1022210256 has 20 divisors (see below), whose sum is σ = 2640709952. Its totient is φ = 340736736.

The previous prime is 1022210251. The next prime is 1022210257. The reversal of 1022210256 is 6520122201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022210251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10647976 + ... + 10648071.

Almost surely, 2^1022210256 is an apocalyptic number.

1022210256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1022210256 is an abundant number, since it is smaller than the sum of its proper divisors (1618499696).

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

1022210256 is a wasteful number, since it uses less digits than its factorization.

1022210256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21296058 (or 21296052 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1022210256 is about 31972.0230201343. The cubic root of 1022210256 is about 1007.3492745148.

Adding to 1022210256 its reverse (6520122201), we get a palindrome (7542332457).

The spelling of 1022210256 in words is "one billion, twenty-two million, two hundred ten thousand, two hundred fifty-six".