1012220456 has 32 divisors (see below), whose sum is σ = 2074427040. Its totient is φ = 460202688.

The previous prime is 1012220399. The next prime is 1012220471. The reversal of 1012220456 is 6540222101.

It is a happy number.

It is a super-3 number, since 3×1012220456³ (a number of 28 digits) contains 333 as substring.

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, 65666 + ... + 79601.

It is an arithmetic number, because the mean of its divisors is an integer number (64825845).

Almost surely, 2^1012220456 is an apocalyptic number.

It is an amenable number.

1012220456 is an abundant number, since it is smaller than the sum of its proper divisors (1062206584).

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

1012220456 is a wasteful number, since it uses less digits than its factorization.

1012220456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145353 (or 145349 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1012220456 is about 31815.4122399821. The cubic root of 1012220456 is about 1004.0570037951.

Adding to 1012220456 its reverse (6540222101), we get a palindrome (7552442557).

The spelling of 1012220456 in words is "one billion, twelve million, two hundred twenty thousand, four hundred fifty-six".