20021012002 has 8 divisors (see below), whose sum is σ = 30039036012. Its totient is φ = 10008000000.

The previous prime is 20021011957. The next prime is 20021012003.

20021012002 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 20016307441 + 4704561 = 141479^2 + 2169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20021012002.

It is not an unprimeable number, because it can be changed into a prime (20021012003) 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, 1242999 + ... + 1259002.

Almost surely, 2^20021012002 is an apocalyptic number.

20021012002 is a deficient number, since it is larger than the sum of its proper divisors (10018024010).

20021012002 is a wasteful number, since it uses less digits than its factorization.

20021012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506004.

The product of its (nonzero) digits is 16, while the sum is 10.

It can be divided in two parts, 200210 and 12002, that added together give a palindrome (212212).

The spelling of 20021012002 in words is "twenty billion, twenty-one million, twelve thousand, two".