21220110000010 has 16 divisors (see below), whose sum is σ = 38574378180072. Its totient is φ = 8404003960000.

The previous prime is 21220109999999. The next prime is 21220110000031. The reversal of 21220110000010 is 1000001102212.

It can be written as a sum of positive squares in 4 ways, for example, as 20908112906521 + 311997093489 = 4572539^2 + 558567^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

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 7 ways as a sum of consecutive naturals, for example, 10505003941 + ... + 10505005960.

Almost surely, 2^{21220110000010} is an apocalyptic number.

21220110000010 is a deficient number, since it is larger than the sum of its proper divisors (17354268180062).

21220110000010 is a wasteful number, since it uses less digits than its factorization.

21220110000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21010010009.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21220110000010 its reverse (1000001102212), we get a palindrome (22220111102222).

The spelling of 21220110000010 in words is "twenty-one trillion, two hundred twenty billion, one hundred ten million, ten", and thus it is an aban number.