1012223140 has 12 divisors (see below), whose sum is σ = 2125668636. Its totient is φ = 404889248.

The previous prime is 1012223137. The next prime is 1012223143. The reversal of 1012223140 is 413222101.

It is an interprime number because it is at equal distance from previous prime (1012223137) and next prime (1012223143).

It can be written as a sum of positive squares in 2 ways, for example, as 726410304 + 285812836 = 26952^2 + 16906^2 .

It is not an unprimeable number, because it can be changed into a prime (1012223143) 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, 25305559 + ... + 25305598.

It is an arithmetic number, because the mean of its divisors is an integer number (177139053).

Almost surely, 2^1012223140 is an apocalyptic number.

1012223140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012223140 is an abundant number, since it is smaller than the sum of its proper divisors (1113445496).

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

1012223140 is a wasteful number, since it uses less digits than its factorization.

1012223140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50611166 (or 50611164 counting only the distinct ones).

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

The square root of 1012223140 is about 31815.4544207685. The cubic root of 1012223140 is about 1004.0578912456.

Adding to 1012223140 its reverse (413222101), we get a palindrome (1425445241).

The spelling of 1012223140 in words is "one billion, twelve million, two hundred twenty-three thousand, one hundred forty".