20021111221002 has 8 divisors (see below), whose sum is σ = 40042222442016. Its totient is φ = 6673703740332.

The previous prime is 20021111220907. The next prime is 20021111221049. The reversal of 20021111221002 is 20012211112002.

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

20021111221002 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668425935078 + ... + 1668425935089.

It is an arithmetic number, because the mean of its divisors is an integer number (5005277805252).

Almost surely, 2^{20021111221002} is an apocalyptic number.

20021111221002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20021111221002 is a wasteful number, since it uses less digits than its factorization.

20021111221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336851870172.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20021111221002 its reverse (20012211112002), we get a palindrome (40033322333004).

The spelling of 20021111221002 in words is "twenty trillion, twenty-one billion, one hundred eleven million, two hundred twenty-one thousand, two".