21220010212022 has 8 divisors (see below), whose sum is σ = 33505279282200. Its totient is φ = 10051583784624.

The previous prime is 21220010211989. The next prime is 21220010212057. The reversal of 21220010212022 is 22021201002212.

It is a happy number.

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

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, 279210660647 + ... + 279210660722.

It is an arithmetic number, because the mean of its divisors is an integer number (4188159910275).

Almost surely, 2^{21220010212022} is an apocalyptic number.

21220010212022 is a deficient number, since it is larger than the sum of its proper divisors (12285269070178).

21220010212022 is a wasteful number, since it uses less digits than its factorization.

21220010212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558421321390.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21220010212022 its reverse (22021201002212), we get a palindrome (43241211214234).

The spelling of 21220010212022 in words is "twenty-one trillion, two hundred twenty billion, ten million, two hundred twelve thousand, twenty-two".