20021011012002 has 128 divisors (see below), whose sum is σ = 54295020638208. Its totient is φ = 4752715104000.

The previous prime is 20021011011983. The next prime is 20021011012021.

20021011012002 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (20021011011983) and next prime (20021011012021).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15895878 + ... + 17109089.

It is an arithmetic number, because the mean of its divisors is an integer number (424179848736).

Almost surely, 2^{20021011012002} is an apocalyptic number.

20021011012002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021011012002 is an abundant number, since it is smaller than the sum of its proper divisors (34274009626206).

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

20021011012002 is a wasteful number, since it uses less digits than its factorization.

20021011012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33005104.

The product of its (nonzero) digits is 16, while the sum is 12.

It can be divided in two parts, 2002101 and 1012002, that added together give a palindrome (3014103).

The spelling of 20021011012002 in words is "twenty trillion, twenty-one billion, eleven million, twelve thousand, two".