1000012002 has 24 divisors (see below), whose sum is σ = 2198375088. Its totient is φ = 303033720.

The previous prime is 1000011989. The next prime is 1000012019. The reversal of 1000012002 is 2002100001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687988 + ... + 689439.

It is an arithmetic number, because the mean of its divisors is an integer number (91598962).

Almost surely, 2^1000012002 is an apocalyptic number.

1000012002 is an abundant number, since it is smaller than the sum of its proper divisors (1198363086).

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

1000012002 is a wasteful number, since it uses less digits than its factorization.

1000012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377454 (or 1377443 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1000012002 is about 31622.9663693968. The cubic root of 1000012002 is about 1000.0040006507.

Adding to 1000012002 its reverse (2002100001), we get a palindrome (3002112003).

It can be divided in two parts, 100001 and 2002, that multiplied together give a palindrome (200202002).

The spelling of 1000012002 in words is "one billion, twelve thousand, two".