21022322002 has 32 divisors (see below), whose sum is σ = 34774515648. Its totient is φ = 9451800000.

The previous prime is 21022321997. The next prime is 21022322003. The reversal of 21022322002 is 20022322012.

It is not an unprimeable number, because it can be changed into a prime (21022322003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2620177 + ... + 2628187.

It is an arithmetic number, because the mean of its divisors is an integer number (1086703614).

Almost surely, 2^21022322002 is an apocalyptic number.

21022322002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21022322002 is a deficient number, since it is larger than the sum of its proper divisors (13752193646).

21022322002 is a wasteful number, since it uses less digits than its factorization.

21022322002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9306.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 21022322002 its reverse (20022322012), we get a palindrome (41044644014).

The spelling of 21022322002 in words is "twenty-one billion, twenty-two million, three hundred twenty-two thousand, two".