21000022010222 has 32 divisors (see below), whose sum is σ = 33687580354560. Its totient is φ = 9783346930560.

The previous prime is 21000022010173. The next prime is 21000022010269. The reversal of 21000022010222 is 22201022000012.

It is a junction number, because it is equal to n+sod(n) for n = 21000022010197 and 21000022010206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3389429 + ... + 7313567.

It is an arithmetic number, because the mean of its divisors is an integer number (1052736886080).

Almost surely, 2^{21000022010222} is an apocalyptic number.

21000022010222 is a deficient number, since it is larger than the sum of its proper divisors (12687558344338).

21000022010222 is a wasteful number, since it uses less digits than its factorization.

21000022010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925736.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21000022010222 its reverse (22201022000012), we get a palindrome (43201044010234).

The spelling of 21000022010222 in words is "twenty-one trillion, twenty-two million, ten thousand, two hundred twenty-two".