1501020012 has 48 divisors (see below), whose sum is σ = 3588963840. Its totient is φ = 488043072.

The previous prime is 1501020011. The next prime is 1501020023. The reversal of 1501020012 is 2100201051.

It is a super-2 number, since 2×1501020012² = 4506122152848960288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1501020012.

It is not an unprimeable number, because it can be changed into a prime (1501020011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168814 + ... + 177482.

It is an arithmetic number, because the mean of its divisors is an integer number (74770080).

Almost surely, 2^1501020012 is an apocalyptic number.

1501020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1501020012 is an abundant number, since it is smaller than the sum of its proper divisors (2087943828).

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

1501020012 is a wasteful number, since it uses less digits than its factorization.

1501020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9030 (or 9028 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1501020012 is about 38742.9995224944. Note that the first 3 decimals coincide. The cubic root of 1501020012 is about 1144.9736553755.

Adding to 1501020012 its reverse (2100201051), we get a palindrome (3601221063).

The spelling of 1501020012 in words is "one billion, five hundred one million, twenty thousand, twelve".