21222200002102 has 48 divisors (see below), whose sum is σ = 38243691271296. Its totient is φ = 8786144505600.

The previous prime is 21222200002099. The next prime is 21222200002109. The reversal of 21222200002102 is 20120000222212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222200002109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83074593 + ... + 83329660.

It is an arithmetic number, because the mean of its divisors is an integer number (796743568152).

Almost surely, 2^{21222200002102} is an apocalyptic number.

21222200002102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21222200002102 is a deficient number, since it is larger than the sum of its proper divisors (17021491269194).

21222200002102 is a wasteful number, since it uses less digits than its factorization.

21222200002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166404325 (or 166404314 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21222200002102 its reverse (20120000222212), we get a palindrome (41342200224314).

The spelling of 21222200002102 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred million, two thousand, one hundred two".