1001212002 has 72 divisors (see below), whose sum is σ = 2616986736. Its totient is φ = 286053768.

The previous prime is 1001211989. The next prime is 1001212013. The reversal of 1001212002 is 2002121001.

1001212002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2793 + ... + 44835.

It is an arithmetic number, because the mean of its divisors is an integer number (36347038).

Almost surely, 2^1001212002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001212002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308493368).

1001212002 is an abundant number, since it is smaller than the sum of its proper divisors (1615774734).

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

1001212002 is an equidigital number, since it uses as much as digits as its factorization.

1001212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42074 (or 42055 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1001212002 is about 31641.9342329131. The cubic root of 1001212002 is about 1000.4038375599.

Adding to 1001212002 its reverse (2002121001), we get a palindrome (3003333003).

The spelling of 1001212002 in words is "one billion, one million, two hundred twelve thousand, two".