21020122000222 has 8 divisors (see below), whose sum is σ = 33189666316200. Its totient is φ = 9956899894824.

The previous prime is 21020122000217. The next prime is 21020122000259. The reversal of 21020122000222 is 22200022102012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21020122000196 and 21020122000205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276580552597 + ... + 276580552672.

It is an arithmetic number, because the mean of its divisors is an integer number (4148708289525).

Almost surely, 2^{21020122000222} is an apocalyptic number.

21020122000222 is a deficient number, since it is larger than the sum of its proper divisors (12169544315978).

21020122000222 is a wasteful number, since it uses less digits than its factorization.

21020122000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553161105290.

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

Adding to 21020122000222 its reverse (22200022102012), we get a palindrome (43220144102234).

The spelling of 21020122000222 in words is "twenty-one trillion, twenty billion, one hundred twenty-two million, two hundred twenty-two", and thus it is an aban number.