21200012020222 has 16 divisors (see below), whose sum is σ = 37188060953472. Its totient is φ = 8874423636120.

The previous prime is 21200012020207. The next prime is 21200012020249. The reversal of 21200012020222 is 22202021000212.

It is a junction number, because it is equal to n+sod(n) for n = 21200012020196 and 21200012020205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17607982804 + ... + 17607984007.

It is an arithmetic number, because the mean of its divisors is an integer number (2324253809592).

Almost surely, 2^{21200012020222} is an apocalyptic number.

21200012020222 is a deficient number, since it is larger than the sum of its proper divisors (15988048933250).

21200012020222 is a wasteful number, since it uses less digits than its factorization.

21200012020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35215966863.

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

Adding to 21200012020222 its reverse (22202021000212), we get a palindrome (43402033020434).

The spelling of 21200012020222 in words is "twenty-one trillion, two hundred billion, twelve million, twenty thousand, two hundred twenty-two".