22021000002122 has 16 divisors (see below), whose sum is σ = 36048260518272. Its totient is φ = 10005685211520.

The previous prime is 22021000002121. The next prime is 22021000002167. The reversal of 22021000002122 is 22120000012022.

It is a junction number, because it is equal to n+sod(n) for n = 22021000002097 and 22021000002106.

It is not an unprimeable number, because it can be changed into a prime (22021000002121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192953858 + ... + 193067949.

It is an arithmetic number, because the mean of its divisors is an integer number (2253016282392).

Almost surely, 2^{22021000002122} is an apocalyptic number.

22021000002122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22021000002122 is a deficient number, since it is larger than the sum of its proper divisors (14027260516150).

22021000002122 is a wasteful number, since it uses less digits than its factorization.

22021000002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386024413.

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

Adding to 22021000002122 its reverse (22120000012022), we get a palindrome (44141000014144).

The spelling of 22021000002122 in words is "twenty-two trillion, twenty-one billion, two thousand, one hundred twenty-two".