21000200002222 has 32 divisors (see below), whose sum is σ = 36640602512640. Its totient is φ = 8840271505920.

The previous prime is 21000200002219. The next prime is 21000200002247. The reversal of 21000200002222 is 22220000200012.

It is a congruent number.

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, 9440104 + ... + 11450587.

It is an arithmetic number, because the mean of its divisors is an integer number (1145018828520).

Almost surely, 2^{21000200002222} is an apocalyptic number.

21000200002222 is a deficient number, since it is larger than the sum of its proper divisors (15640402510418).

21000200002222 is a wasteful number, since it uses less digits than its factorization.

21000200002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20891976.

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

Adding to 21000200002222 its reverse (22220000200012), we get a palindrome (43220200202234).

The spelling of 21000200002222 in words is "twenty-one trillion, two hundred million, two thousand, two hundred twenty-two".