21020222222002 has 8 divisors (see below), whose sum is σ = 31594549899312. Its totient is φ = 10488705588900.

The previous prime is 21020222221987. The next prime is 21020222222047. The reversal of 21020222222002 is 20022222202012.

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

It is a super-3 number, since 3×21020222222002³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10702759824 + ... + 10702761787.

It is an arithmetic number, because the mean of its divisors is an integer number (3949318737414).

Almost surely, 2^{21020222222002} is an apocalyptic number.

21020222222002 is a deficient number, since it is larger than the sum of its proper divisors (10574327677310).

21020222222002 is a wasteful number, since it uses less digits than its factorization.

21020222222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21405522104.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 21020222222002 its reverse (20022222202012), we get a palindrome (41042444424014).

The spelling of 21020222222002 in words is "twenty-one trillion, twenty billion, two hundred twenty-two million, two hundred twenty-two thousand, two".