21200222002 has 32 divisors (see below), whose sum is σ = 34881321600. Its totient is φ = 9625085568.

The previous prime is 21200221961. The next prime is 21200222041. The reversal of 21200222002 is 20022200212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80763 + ... + 221185.

It is an arithmetic number, because the mean of its divisors is an integer number (1090041300).

Almost surely, 2^21200222002 is an apocalyptic number.

21200222002 is a deficient number, since it is larger than the sum of its proper divisors (13681099598).

21200222002 is a wasteful number, since it uses less digits than its factorization.

21200222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140610.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 21200222002 its reverse (20022200212), we get a palindrome (41222422214).

The spelling of 21200222002 in words is "twenty-one billion, two hundred million, two hundred twenty-two thousand, two".